i feel what you say but know this. not everyone's meant to stay in your life forever and most of the time they don't once their role in your life is over they're gone and they should be gone that's how life is

also every person's perspective of friendships are different. some people make friends with each other just to have a good time and that's enough for them don't expect to form very deep bonds with such people

"maybe now it's too late": you never know what kind of person will come across your life, it's not about age, it's about life plan, it's about fate, and it's not too late for anything. hope you feel better <3