Help, ball python not shedding

[Bogertophis]

...I live in a pretty humid place and the humidity sticks to 65/70 everyday without me doing anything btw.

Is that the humidity outside? in your house? or in the snake's home? Where are you getting this reading?

Keep in mind that our HVAC systems remove humidity from our homes, & also, the heat required to keep a ball python healthy will evaporate the humidity in their home.
You want his HOME to be about 70% when it's "shedding time".