What is the point in living?
I used to feel like you, Yes YOU. The key is to stop searching for a special meaning and just live. What's the meaning of life? There is none. We were born to this world to do what we want with our time here... then we die. Try to pull in the reins of that active brain of yours and stop over analyzing life. Ask yourself why you don't commit suicide. What in your life would, or could, keep you from pulling the trigger. Fear of eternal damnation? The pain you'd cause family and/or friends? You'd feel guilty about making someone clean up your post-suicide mess? Yeah, it's easy to wallow in self-pity. I still do sometimes. But I live just for the sake of life itself.
If you make yourself go out into the world and do something worthwhile, creative, caring, etc. you are giving meaning to your life. Self-indulgent activities and hobbies can also bring some enjoyment to your world. What I'm trying to say is that everyone needs something to look forward to - a reason to get up in the morning, or life will, understandably, be pretty damn miserable.
My grandfather lived to be 105 years old. He was a simple man that didn't make a mark on the world. He never held down any job for long. If he got sick of his job he moved on. (he'd be diagnosed with A.D.D. nowadays) However, he always seemed content. And he always had something to do. Something he was planning. Something to look forward to. He went to bed at 10pm and got up at 7am every day. And the night before he went to bed he always had something planned for the next day. You see, he had a reason to wake up every morning, and consequently he had a reason to live. He lived to tend his garden and watch it grow, he lived to go fishing and hunting, he lived to watch football, he lived for his nightly snort of brandy, he lived to smoke his pipe and try different blends, he lived for his wife and son and grandson and great grandson, he lived for dry roasted peanuts.
No matter how small and insignificant these things seem in relation to the universe, they were the world to him and he was a happy man because of them. So if you try too hard to find meaning in your life, and some cosmic metaphysical reason for it you will be disappointed.
I learned from my grandfather to live each day for the simplest of pleasures. He would always tell me that his only goal in his life was to come to the end of it with as little "should'ves" and "could'ves" as possible. I think he came pretty damn close to achieving his goal.
Find your "simple pleasures", relax into your life, don't over ponder the things that can never be known in this lifetime, and start talking with a professional; even if it's just for the sake of venting.
I'm living because of these simple things, not because of religion, spirituality, or some great understanding of the world. I find physics, astrophysics, quantum mechanics, and all the other sciences that are forever trying to unravel the worlds mysteries, enthralling, but I don't look for the meaning of life in them. I just live. (as much as I can like good ol' grandpa)
Take care of yourself