Sounds like your heart is in the right place, but I'd focus on healing and YOU right now.
Your credit is likely pretty bad right now, so I'd go to the federal site:
https://www.annualcreditreport.com
get your credit reports and see who has listed what debts on your 3 reports.
There are countless sites to help you negotiate debt on your own; my question is, can you earn what it will take to repay the debts? If you can, then great. If you cannot, then you will be among the millions of uninsured Americans who are forced to file bankruptcy due, in part, to lack of proper medical care or ability to have proper insurance (ie you did not have disability insurance, so...)
They haven't made it against the law to file, it's only slightly more detailed, but you are well within your rights to file - you can't let this debt swallow your life, b/c it will. You will still owe any government-related debt (school loans, judgements, fines, etc.) however.
I suggest this only in the event that you will not be in a position to earn enough soon enough to pay back your debts. Credit card companies are not known for their forgiving natures, mind you.
I sympathize with your daring to work for a start-up but in these shaky times we live in, I would say go for more solid work to make it less likely that you would end up in debt to this degree again.
Please look at your circumstances with clarity and decide if you can pay this debt back or if you might be best off to file Chapter 7.
Best of Luck to you and I hope things turn around for you!