Too many, but I learned from most.
- Falling for a stripper, trying to date a stripper
- "Lending money" and expecting that I would get it back
- Lending money as a pre-payment although it did work with one
- Not using a hobby phone and restless nights thinking my phone might ring/beep from the wrong person.
- An stripper/ex-stripper falling for me. Fortunately she's ended up moving out of state (although she was one of the best lays I've ever had).
I hope there aren't too many more mistakes that I have to learn from.