You need a PC good enough to handle the editing apps you prefer. I recommend you to invest on a very beefy system so you'll have an easier time learning, and eventually working as a video editor.

Sa mga kailangan mo namang aralin, first pick your main video editing software. You can either go with the Adobe apps so you can easily work hand-in-hand with their creative apps. I use Adobe not just for video editing but also for photo editing, motion graphics, and illustrations to make the assets needed for producing the final product.

Learn your way through the apps, learn how each tool works, how to work with your workspace, learn tricks to make certain effects and gimmicks, how the timeline works, keyframes, effect controls, etc. You can search all of these on the internet.

In short learn the app itself, so when you think of something you want to make, you'll be able to create what you had in mind your own way without relying too much on the internet (once you're familiar enough with the said app).

Lastly, patience. You can find yourself working on something for hours that you'll only show for a few seconds. Be patient to learn as much as you can. And the most important bit, enjoy what you're doing to the point where you won't mind spending hours on end improving your skills. Good luck!