Yes, I did some rewrites of the show as some of the stuff was not very good and I worked my butt off to make it something that the audience liked and that I could be proud of.
I always felt like my future was at stake every time I stepped on stage and that was kind of hair-raising. At some point I just went, don't be frightened, you can't do anything wrong, it's your show.
Good acting is all in the writing. If it isn't on the page, then it really won't make any difference. You cannot act on force of personality alone.