I just feel so lost lately

So I (18m) have just kinda been having this feeling that life is kinda pointless, I'm not feeling suicidal or anything like that, it's just that I feel like I don't have much of a purpose....

An example would be recently me and some of my friends have started a minecraft server which we will try to keep running for quite a while and that's fun and all for a little while but then gets boring and it makes me want to play other games, however I've played my extensive steam library over and over and I just feel like video games are just getting boring.

It's not just video games either, pretty soon I'll be starting college for 4 years and will be moving away from my childhood home, I'll be living alone in one of my parent's other properties and I just feel like "well then what after school" because I would just go home and sit around not doing much until I repeat it over again the next day, eventually when I get a job as a mechanic (taking a mechanic apprenticeship for school) then I'll just be working for 30+ years until my body gives out.

I feel like I can't enjoy my hobbies either, I build and play electric guitars and have been playing for 4 ish years, nowadays though, it just hangs on my wall collecting dust, I don't do much for sports except for golf since I prefer the slower pace, even still playing golf just feels.....pointless, at the end of the day it's just "get the ball in the hole and get a low score" which wasn't the intention because it was fun when I first started playing years ago.

I don't really know if it's just because I'm getting older and losing the "spark" of childhood or something but.....at this point I don't see a point to it all, and again just to reiterate I have never had feelings of depression or suicide, maybe it's just me growing or.......I don't know at this point, and again I'm not trying to bring the whole sub down but I just feel like I don't have answers as to why I feel like this now....

Tldr: feeling lost in life and don't really know where to go with it..