It's so easy to get wrapped up, especially if we feel a bit insecure with other people and don't socialize as much as we'd maybe like to.
But you must have other interests ? If not now, then what did you do as a boy as a hobby ?
Return to them, search them out on the 'net and see if it sparks your enthusiasm again.
It doesn't matter what it is, I work with a 50 yo truck driver who collects Action Men figures, it still gives him the pleasure it did as a boy.
I know that I'd go crazy without my 4x4 to play with, and play is the right word to describe the way I 'use' my hobby. I'm like a big kid, when I'm in the workshop welding and spannering it's like having a giant Meccano set ( do you have that over there, the kids construction toy ? ) and I drive it with a grin like a child on their first three wheeled bike !
Collect stamps, play chess, learn to play the guitar, paint and draw; whatever it is allow your childhood enthusiasm to drive it along.
Go confidently in the direction of your dreams! Live the life you've imagined. As you simplify your life, the laws of the universe will be simpler.
Henry David Thoreau