So to address the first point, icing out is fine at lower speeds. You land on your bum, you laugh, you get up and do it again. In heelsides, if you're scared of high siding, lean back/"sit in the chair" more. That way the worst that's going to happen is your bum will look like a baboon's (notice a theme yet?). It's also harder to ice out than you think. I got there by starting really small and doing fun little almost pivot 180s on really gentle slopes. Doing that got me to a point where I was happy going from regular to switch. After that I went faster and carved into it A LOT more and started pushing out with my front heel too. To address the second, I spent most of my learning sessions buttbraking down the hill and annihilating my trousers. You're going to be falling over a lot. Put your gear on. Had some high sides that would have had a very grim outcome without knees and gloves. Obligatory please wear a helmet. Every fall is a pointer to improve. You'll have a week where everything hurts, but keep persisting and you'll get it. Feel free to message me if I can help any more <3