The first step of solving the problem of being "a depressed man-child, living on grant money and parental support" is to recognize the problem. You did that.

Fixing the income source will help. Note that the women will be looking at long-term prospects, so being on a path to near-future graduation with a viable degree is about as good as actually having a good job. Since you are "supposed to be graduating next week", you are probably have a decent status right now. The better ones are wondering if you can reliably support a family for decades, not if you can buy them toys today.

There isn't much physical aspect of dating for most of the people who are serious about starting a family. For those people, that stuff still waits for after the wedding. Suggesting otherwise would be a red flag for them, and you might want to view it the same way. If you can get yourself to honestly view it that way, then you have a legit answer to any questions they may have about your experience.