Advice please.

Hello r/BALLET,

I danced a lot in high school/late teens but 5+ years of sedentary lifestyle/job has ruined my turnout and lower abdominal muscles. I am getting back into ballet and I can't even do a grande plie properly!

The muscle memory is gone and I'd like to recover it.

Can someone recommend some resources for exercises and or stretches that I can do at home?

BONUS POINTS: I want to get one of those free standing bars. Where is the best place for that? I'm in Canada. Thanks!