What to learn first as a beginner ?

So for context, I started guitar in October (Currently 16 YO) and at the beginning I was really motivated at learning guitar, I was able to play all the Open chords and learned the changes from A to D, G to C and E to Am, but around mid November/early December things happened in my life that didn't really put me in a good mood and I didn't really touch my guitare from then Now I'm here again and I don't really know what should I learn first, I've seen a lot of videos and want to learn a lot of things, but I don't know if I should first learn the bar chords, a scale, being able to Switch up confortiy between all open chords, being able to do a bit of fingerstyle or even something else For the past week Justin guitar was my "Guide" and I'm still using its video as my main tool I also don't know if I should already start learning music theory not ? The only real thing I know to do in music in general being rythm (With instrument or my body). My main goal is to be able to write melody or songs by myself, with chords and just by picking because of how much space Music has in my hearth. Sorry for all of these really beginner-ish questions, but I didn't really know where to ask that, not knowing anyone who can play guitar in my relatives except my grandpa who is unfortunetly in another country so I can't really talk about this to anyone, and as strange as it seems, and stupid as it is even if I know it, I really want to learn by myself, few things in my life happened that pushed me to promise to myself to learn mainly by myself if I have the option. Again sorry for all these beginner questions, and I hope you guys could help me with that 🙏