recommendations for better feet/arches??

I just recently got my first pair of pointe shoes about 2 months ago! I’m 19 & I only started ballet about 3 years ago, so I know there’s lots of improvement to be made. My left foot definitely seems to be harder for me to arch/turn out but I am wondering if there are any good tips/tricks or advice anyone has to improve as quick as possible! (these photos are taken while i am in arabesque at the barre)