Your feelings are valid.
But you know what? Why should your happiness rely on others?
People expect to get married at 25. I thought the same back in college. Now, I'm far from that. But where God has taken me, I am happier than I ever was, even if the road I took to get here was not at all what I had thought I'd take. And do I still find myself struggling now? Of course. That means we're human.

You're 24. It is not the end of the world.
College and dreams, you now feel like fast tracking. But ten yrs later, you'd see how what you thought is your world are just trivial parts of it.

Life is about the journey, not the destination. The moments in between.

If a dream takes effort and time, then give that. If you achieve the dream or not, if it changes, let it. It is your life.
Take accountability for it.
It does not matter if you live in your parent's house now or elsewhere. But since you're there, why not make the most of it?

Eight+ yrs ago, my whole world changed and my life was rearranged completely. Grief did that. The road I had to take, the responsibilities changed me.

And it took me years to realize the meaning of "Strength is a choice we get to make every time. And a step forward is something we can still take."
What ever situation you are in, make the best of it. Be your best self at it. Or try.

I read a quote somewhere. It says that we are given mountains to show others it can be moved.

But at the start, during, and at the end of it, submit to God. That point where you are at loss, that is where He works best. And if you realigns and shows you a path you never thought of, and give you a new dream, do not be surprised. It's all part of the journey. :)

Hang in there. And fight.

I can relate to some (not all) of the things you write about. The good news is you're not alone because others do have these or similar type issues. The bad news is no matter how much misery loves company, you have to experience and work through these things on your own.

You have a girlfriend. You have dreams. You have skills, talent, and you are on a path. That's a lot in your favour. It sounds like you need some exercise, a healthy meal plan, and a connection through prayer. That won't magically solve your worries, but it's an incremental step. That's the solution you know... incremental steps. Transformations through life hacks only happen in videos created expressly for views. In real life, it's all about incremental steps.

If you don't wish to be that old fat guy who hates the world, don't be. It really is that easy. It's a choice. What you do with your life is another one. make one small choice at a time, do something little today to make you a better person tomorrow. Do the things you loathe, the things you hate. You can be angry about it while you do them, but get them out of your way.

The first thing you should do. You know yourself well enough to know that you are not addressing the direct issues well. Find someone else who can.

C'mon so many havent graduated, you are still a nice person. I hope the higher power (in the Universe, who could be God) helps you realize this.

Learn to manifest and you’ll achieve all your goals

I'm 25 and I cry sometimes over things you describe and problems of my own, my life isn't directly fulfilling, but the snail is right. You gotta take one day at a time. Forget about tomorrow, it's of no use to you, today is when things happen.