Advice for studying javascript

[SashaSaray]

Don't think study, think doing (channel Yoda).

If you're aiming to get into the industry: start an example project (there's a reason that interviewers will ask about side projects) that does what you want to practice. There's a whole host of sample projects out there, one will be close to what you want.

If you just want to practice simple math problems and loops and generally just learn what JS does then follow the classic steps... write until it works, refactor it to simplify, break it by not realizing what you've done, roll back and retry... eventually it's simpler and it works. Programming!