I'm your age and started at the same time, but am still trading well. You need to ease into it and try and make 1-2K a day until your confidence and drive are back. Then be aggressive.
You need to be an elite trader though. If you put down 20K at a prop firm, you will most likely get 1,000,000 in buying power. Then it's as simple as making 2k a day after commissions.
Always risk other people's capital when you learn how to trade. In business school they always teach you invest other people's money. Then, when you establish yourself as a profitable trader you can trade with your own money as a customer.
Trillium Trading LLC and Chimera Capital LLC. Each hires college grads and actively teaches them to trade. They also are the only two firms left who offer a draw.