Ruined Own Sex life

[Quicksdraw]

Fun story short.
Single for too long, resorted to jerkin it.
Been doing this for years and got good at getting the job done quickly so that I didn't get caught (and who really takes their time doing that anyways?)

So short story short.
Hook up with a chick.
Apparently my wiener doesn't know the difference between a hand and a vag.
I bow out quickly.

Next time, same thing.
Next time, same thing.

Am I now doomed to disappoint women for the rest of my life?
Is there a cure?