try and learn / do at least one new thing everytime u go up. even really simple dumb shit. doesnt have to be anything crazy
do a new run entirely switch, learn to spin un natural, learn switch nollies, focus on making good/fast turns, ski off piste somewhere new, try a new scary chute, focus on making ur speed checks steezy, try the S rail, steez up ur 360's etc etc etc - u can always work on something new
if ur constantly progressing (even if its just a minimal progression) ur never gonna feel like ur skiing bad. try new things / tricks, skiing will never get stale, and you will feel like ur getting better.
i can cork, rodeo, back/front flip, drop big ass cliffs blah blah blah, but i literally just learned last week how to unnatty switch 180, and ive been skiing for 20 years...... there is always something u can work on to progress ur skiing.