[angersock]

Here, two from personal experience:

"I worked on a mobile startup, right before iOS got big; J2ME games. Yeah, I think we sold maybe 50 games once? Anyways, stayed in college, no harm done."

"I tried a startup. After a year, it imploded in not-quite-glorious fashion. Still dealing with the fallout from that, but I learned a lot about business and product development."

There's no shame in failing, and anybody worth working with will appreciate your experience--that is, if you learned anything.