Not intended to discourage you at all but know that whatever you do to improve it, you will need to continue to do every day because the minute you stop, you lose all the gains that you made. I know this from personal experience sadly.
I can't even take my level 1 field moves because I cannot get my leg to hip height on one side (I forget which was my good side now because they're both equally bad). I can randomly get my leg high enough in a camel spin, but not in a spiral.
I practiced leg raises in the spiral position, stretches holding the position on a balance board, then leg raises in the position on the balance board. I made some improvements, but then got to the point of needing to do it all with ankle weights on because off ice you don't have the weight of the boot, so I was never getting it as high on the ice as I was off ice.
I got as far as ordering the weights, and then got lazy

: So I still haven't taken my level 1 field moves.