Im changing my strings for the first time by myself, and when I put the low E string on, I didn't give it enough slack so it immediately tightened up, so I took the string off. Now the string has a big bend where it was twisted around the tuner peg. Can I still use the string or do I need a new low E string?
You can still use it. Why would you post that instead of trying?
you can still use it when you tighten it it will be fine