You are pretty tight Clar, 17/8.5 is really tight, but it doesn't mean its necessarily bad as im assuming you play low stakes. I'd probably stop calling with Axs to raises and raise more hands in position, even like KTs, QJs, QTs, t8s, etc.

Though winning with your stats at 25nl shouldn't be too tough, i'd continue to try to focus on perfecting your preflop play though.