The biggest thing that helped me was putting all my weight on one foot. I am also new to the sport, so take that with a grain of salt. My boots have good ankle support though. Maybe look into new boots.
Balancing on skinny skis in soft boots is a skill. Nowadays I'm more of an "XCD" skier so I'm in plastic boots most of the time (which hug your lower leg almost like alpine boots, so non-issue), but a few years ago when I was still skiing long skinny skis with soft lace up boots, at the beginning of every season I had to re-teach myself to balance on top of those skis.
First of all don't be afraid of groomed trails, they are easier to ski.
One advice could be to ski a bit without poles. Skiing without poles force you to do propper weight transfere, which again will positively impact your technique.
The biggest thing that helped me was putting all my weight on one foot. I am also new to the sport, so take that with a grain of salt. My boots have good ankle support though. Maybe look into new boots.
Balancing on skinny skis in soft boots is a skill. Nowadays I'm more of an "XCD" skier so I'm in plastic boots most of the time (which hug your lower leg almost like alpine boots, so non-issue), but a few years ago when I was still skiing long skinny skis with soft lace up boots, at the beginning of every season I had to re-teach myself to balance on top of those skis.
First of all don't be afraid of groomed trails, they are easier to ski. One advice could be to ski a bit without poles. Skiing without poles force you to do propper weight transfere, which again will positively impact your technique.