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I would recommend foot and ankle mobility to start.
With your foot in skates the may get crammed and you need to restore them.
Undo the time you are spending in skates. Not a good/bad thing just something that is.
Heel cords, hip, adductor, quad based episodes.
T-spine, traps, shoulders, low back are another set of areas you may want to hit.
Do you notice any areas of restriction?
Skating technique drills, starting from ground zero and revisiting basic foundational skill drills can have a huge impact. Moving correctly, moving correctly faster, then add time, load, etc.