What to do with very sensitive legs..

I have very sensitive skin, when I shave I can only shave once a week(thank goodness my hair is blonde😅) and when I do that I still break out bad. I have tried so many different things to make it so I don’t break out after shaving. I don’t know what else to do. Any one else have any advice that they learned from if going through the same thing I am? TIA