Speaking as someone with little experience, it's noticeable how different peoples' standards are with regard to what is "normal". Having learned in the North of Scotland, doing mountains (with mountain wave and all that), valleys (& steep turns when the weather traps you), and 45 kt winds (in the cruise) all became a normal part of flying for me.
Seeing as I actually live in the south, I find myself frequently flying when loads of other people at the club won't go up.
Guess what I'm trying to say is, stick at it, get used to it, relax and enjoy it. My personal pet hate is when the air gets really turbulent flying downwind of a mountain (as opposed to over them)... I always wonder if the wings will break off! But when this happened with the instructor, he never looked the slightest bit concerned, so I have learned to relax in similar circumstances!
Carry on enjoying!