I just finished high school and I am planning to learn programming and build a career off of it, I decided to learn JavaScript but I don't know what place would be the best to learn it so if anyone has a suggestion I'd be really glad if you could share it.

Well I mean I learned it by advertising myself as a master programer on the internet taking other peoples others for jobs and then practise made perfect rest is history

You can start with w3schools and ask your question in stack overflow and ...
Practice and being pro ...

https://javascript.info is an incredible resource. I'm not a new programmer but I've been using this site myself to learn javascript. Easy to read and in-depth. Highly recommend.

Youtube is your friend man ... then you'll just have to practice

Some of my friends working in big money institutions suggest learning COBOL. The original developers of COBOL are either dead or retiring and hence demand is high.

Just search on youtube, many great videos there for wherever you want to learn

you can follow tutorials to learn the language but personally i just came up with ideas for projects and tried to make them & figured things out along the way

I think the best way to learn any coding language , or anything in general is to dive into it and build habits with it 
make it part of ur daily life 
pick a good learning site and stick to it , and with time you`ll find yourself diving and interacting with it 
i can recommend you the freecodecamp , they have a very system and its for free
all the best of luck

first do freecodecamp after that do some books by orelly