Most ppl would have at least some of those fears, so it's normal.
If you go to a capable surgeon with a proven track record, then there will be every chance of the op being very successful. But as it is with every surgery, there's always risks & no guarantees. We're all in the same boat.
It comes down to how much you want it. Does it really bother you? Everytime I look in the mirror I think about it & it'll never go away & for that reason, I'm going ahead with it very soon