SSI Please HELP!?

I am on SSI. I tryed to go back to work and cant do it. I have tryed more than once. I am on SSI I feel bad for being on it. What is going to happen when SSI runs out of Money. I am 25 years old now and been on it 5 years. I have knee and Learning Disabled. I tryed to go to school never made anything of my self. I feel stupid. I would love to work but I cant. Should I keep trying or just live a nice life on the SSI Bene?? I do go to Bingo at the casino for fun it seems to help me and I meet alot of fun people! I win some times nothing big!