I think taking a tumbling class at another gym would be a great option. It will give you and your parents a chance to see if this new gym would be a good fit without the full commitment.
This isn’t a specific thing I wish I would have known....however my biggest advice to a new cheer mom (and what turned out to be my saving grace for season 1), is befriending a friendly/helpful/knowledgeable/veteran cheer mom. When I was too embarrassed to ask a question, felt like I was bugging...