Humidity Levels

My Ball had her first shed the other day, but she shed in pieces because I couldn't get the humidity high enough with the aspen, but now I'm currently using Cypress Mulch and it got rest of the skin off really easily, but now she's finished shedding her humidity is 60%-65% is that ok. And when she's due to shed again how high does it need to be.

And I'm so also using T-Rex Bio-Mist Reptile skin conditioner, will that also help or is it just a waste of money?

All of the those pet store spray are a waste of money :)
Humidity during blue can be anywhere from 55-65%.
Humidity during the rest of the time can be anywhere from 50-60%.
So, your humidity is a little high, in my opinion ;)

Will spraying less often bring the humidity down?

Yep! :)

I usually bump Furio's humidity to about 60-65% during shed.