Borderlands

So last night I got the urge to do a little "glitching" on Borderlands the current game i've been playing. I found a You Tube video on how to do this and after a few tries I got it to work. Maxed out all the stats and now I lost all the checkpoints and progression that took A LONG time to get to. I'm so mad, but it was my own fault. So I have an awesome USELESS character. Gotta start all over.