Coming back from holidays, my hands still hurt after sailing several days in a row. Is it a common problem? I don't like to cleat the mainsheet when it's blowing, and it blew very often... My crew members are is still young to give them the mainsheet, so it's not a solution yet, though I'm planing to do so soon..
What to do?

Edit: N5.5SL, 7:1 for mainsheet