Hey there!
Sounds like you’ve just started your pole journey, so I hope that you have fun with it!
Depending on how grueling your pole classes are, and also how expensive and how often they run, it’s best to leave at least one day in between when you’re starting out. Some people, however, can pole dance five days a week… but they are generally very athletic to begin with! The day of rest is for your muscles to repair themselves, so it’s very important.
The range, usually, is between once a week and five times a week… but definitely no more than that!
As for holding yourself up on the pole, it does sort of depend on which move you’re doing… but for a basic pole hold (facing the pole, just using your arms), it can take a long time to really feel strong at it. It’s best to make sure your form is correct, and that you’re engaging the correct muscles! That can make all the difference!