15 year old male in High School.

Never been in a relationship or dated (only recently taken an interest but I think I'll go monk mode for a bit.) Only girl I'm really interested in at all in pretty low-value tbh, but I don't know if this is just my subconscious being realistic.
Not many friends, pretty much no social life. My social skills are shaky, at best, but I am improving. Pretty introverted and most of the people at my school bore me tbh.

Generally well-liked, mostly for being chill and good-humoured. Nobody really dislikes me.

Textbook skinnyfat. I run on weekends, but I do not lift. I would have no way of getting to a gym regularly (no car obvs. + shit public transport and I live kinda far from the city.)
Thinking I could get my own weights, but it wouldn't be much and I'm not sure if it would be worth it (I'd also be alone so I wouldn't have much guidance other than what I find online.)

Despite my body, fairly good looking all things considered. Most males my age are taller than I but I am by no means short, and I have very good posture.

Literally no talents or hobbies (I do read a lot so there's that.) Don't play any sports and literally never have. Thinking I could start learning to play guitar, my dad is a passionate guitarist so he's probably go out of his way to help me out.
Don't play video games at all any more (used to all the time, but I find them incredibly boring now.) Never had any problems with porn/masturbation. Don't do any drugs/alcohol.

Recently cleaned up my Instagram of all the disinteresting and sad/suicidal/whiny shit because nobody has time for that, also gained a few hundred followers.

Recently become fairly confident (used to hate myself and have hella social anxiety when I was younger and I've been steadily recovering), but I am also confident in the fact that I am a fucking loser.

TL;DR - beta fag in HS. I feel kinda lost rn and I'd appreciate some pointers, suggestions or guidance as to how to increase my SMV and make myself higher status/more attractive/generally better.