does anyone have any tips for learning a language?

I'm trying to learn three languages but it usually comes in phases and it'll leave after a few weeks, I say I want to learn Spanish and Tagalog but it just never comes by. Korean is the only language I actually have more knowledge in but i gave up learning it because I didn't know how to progress. does anyone know how to stay consistant at learning a language and is there any good yt channels/sites for learning either of those languages?