I got a tattoo last night, & on paper an on the transfer it looked good! But after he tattooed it, it looks like crap! It says "bullet proof" & the "L"'s aren't symmetrical, the B is ugly, so it the T and the P and F. It's thin, so I'm wondering if the could fix it? What do you think?

Without seeing a picture it is difficult, but as it basically art work then this sounds more like your own personal taste.
If you are unsure go back to the tattooist that inked you for advice.

Once it's healed it sounds fixable... I wouldn't go back to that guy for anything you'll probably have to go bigger to cover it but you it sounds fixable