Insecurities as a young adult and dealing with FOMO

Hi everyone, a few months ago I turned 18 and ever since then there has been this unease that ive been experiencing...I dont know how many can relate to this but im hoping if anyone feels this way then they can help me with this...

I feel extreme FOMO on every area of my life... I feel like everyone else is already ahead of me and has already figured out everything they wanna do in life while im always left behind. I feel like everyone else is excelling academically, doing well in extra curricular, have tons of good friends they hang out with, has glown up and look amazing, already have their licences, gotten into a good uni, are having romantic interests or are in a healthy relationship...while I have none of those things...

Yesterday was the worst that this feeling had gotten

My mom proposed that the both of us go out together and spend some time... but all throughout I felt shameful that I was hanging out with my mom coz noone in my age goes out with their mom like this...I felt sad and lonely when it was supposed to be a fun time...I obviously didnt share any of this with my mom coz its not her fault im a loser but yeah...

I dont know what I can do about this...ive started to try n glow up and all that jazz but nothing has seemed to improve this feeling

Any thoughts?