Sound & Video Editing

Hello!
Ideally, there should be no confusion at all. Because, after the completion of any course you should join a job to test 'How' you have learned that course. My advise will be to go for a job and then after for higher studies. (#) Doing a job will give you the more relevant knowledge of this field. (#) You can save a big chunk of money to cope up with the major and minor expenses of your studies. You have just studied the video editing, hence there are many possibilities that you are unaware of the real projects that a company faces. You can get more knowledge you have to jump in the film and video editing business. This will not just make you financially independent and stable but also it will gives your additional preference when you will go to apply for the further continuation of your higher studies. Hence, without having more doubt on that, just apply for the job and gain industrial exposer for at least 2 years.
Hope this helps.
Good luck.

Photography is a skill and competence to be learnt with utmost concern and with someone who is an excellent trainer of this domain. However, your requirement is for an online training or course, it means you already have the foundation made and wish to pursue further. I am sharing a photography course. Similarly, Video Editing Tutorials and MOOCs can be found. open2study.com offers a MOOC and like them, there are many other MOOCs to enhance skills.
What's it all about? You will learn about photography as a visual art practice, and how this can help you to become an engaging and active photographer. You will explore the work and concepts of contemporary photographic artists, which may trigger a new interest in what you photograph. In addition to this, you will also learn some of the practical skills required to further explore photography in exciting and creative ways. Finally, we look at the idea of a digital darkroom and explore ways that you can further your interest in photography through post-production knowledge and techniques. This MOOC is free and can be done in 28 days only. The course started on: 08/01/2018 and will be ending on: 06/02/2018.
You can enroll immediately.

Video editors are in great demand with the advent of streaming videos and movie clips in websites. As this field is becoming highly competitive, video editors can expect keen competition for job openings. One can enter into the field of video editing, after completing the digital video editing course or a media arts degree. Video editors work with the production personnel using advanced editing tools to analyze, evaluate, trim, arrange and join scenes according to guidelines set out by the producer or director of the project. One can find jobs in the government film and TV production studios, web design companies, advertising and multimedia companies. They can work with independent production companies and for motion picture studios. Many such government agencies recruit video editing professionals. Most of the video editors are freelancers and so they can build their own career in the desired way and this is also one of the good choices. Pay scale: initially one can earn 8,000-12,000 INR per month and with experience and qualifications, it may go to more than 25,000 rupees per month.

There is a comparison asked for in this question. Video Editing Vs Advertising Management and Public Relations.
1. Video Editing is a single dimensional area where one shall work FOR the Advertising Management industry as well as for the Public Relationship work as well.
2. Editing is more of a Desk Job whereas Advt and PR Management is a comprehensive profile. The former keeps you in the later takes you to.field and vast areas of Public Interaction.
3. Editing is a Technical Skills; whereas PR and Advt Management is made of competence and multiple skills.
4. based on the experience I had in the Media as well as in Higher Ed, I would go for the Comprehensive Domain I.e. Advertising Management & Public Relations BUT I WOULD SURELY LEARN the nuances of Video Editing to enhance my Creativity and capability to manage that part of a bigger domain. Video Editing is a money earning work but quite 'small in impact'.

Video editing is the process of choosing the best raw footage for a movie. This includes removing unusable footage and combining together to convert it into the best possible sequence. And, Sound editing is another important part of video editing. A video and sound editor is the professional responsible for editing the raw footage shot during the making of a movie. They need to make it very attractive and error free in such a way to satisfy their clients or the audience.
Job prospects:
Many television centers, news channels, film and video industries, advertising agencies, multimedia and web designing companies, are recruiting sound and video editing professionals.
One can also work as a freelance sound and video editor. This is one of the trending jobs which people option for.
Pay scale:
The starting salary would be around 15,000-25,000 INR per month. With few years of work experience and exposure, one can earn more than Rs. 50,000 per month.

Video editing is the process of choosing the best raw footage for a movie. This includes removing unusable footage and combining together to convert it into the best possible sequence. And, Sound editing is another important part of video editing. A video and sound editor is the professional responsible for editing the raw footage shot during the making of a movie. They need to make it very attractive and error free in such a way to satisfy their clients or the audience.
Generally, any person with a post graduate degree is preferred more than a person with a Bachelor's degree. Though, you can get more jobs with a decent salary after a UG, if you do a Master's program, then it may increase your chances of getting a job as well as your pay scale.
There are many higher studies options available after a UG in sound and video editing.
So, I would say that you can option for higher studies after completing sound and video editing.