Well first you’ve got to make sure you are permitted to be employed during this time. Talk to your state-assigned caseworker or agent about options. You don’t want to endanger your chance of getting the disability funding that I assume would enable you to see this psychiatrist. There are definitely off-the-books things you can do for cash, but I’m loath to suggest any without knowing your situation better. My recommendation is to do further research on the implications of taking a job.