u/Safe-Value-1400

So I got my first aft gecko last Wednesday and she is 7 months old. She hasn't eaten in about 10 days (but her tail still looks plump at least) which I think might be due to my heating situation or just stress. I recently switched from the Thrive 100w basking bulb to the Arcadia 75W halogen flood bulb. Despite everywhere saying this is the recommended bulb for a 40gal tank I think it's struggling to supply enough heat. My basking spot/warm hide gets to 88-95F, but the ambient air temp on the warm side is only 80-81. I'm scared to up it to 100W cuz my bottom basking slate already nears exceeding 96F. She's also doing a ton of glass surfing at night. I'm unsure if a lot of her behavior is due to still being new and stressed, or if there's a serious problem with my set up. I'd be less concerned if she wasn't still a subadult that's growing and needs feeding every 2 days. Any advice is welcome, just be kind. I'm really trying :\

Please rate my setup and give any feedback you may have! Ignore the humidity, I know it's too low, I just didn't mist it today. I am getting an AFT gecko in the next few weeks but want to make sure my setup is good first. I have a 5.0 T5 HO UVB and a 100watt halogen bulb on a dimmer. Ambient temperature is pretty consistent at 83-85 on warm side and 73-77 on cool side. My main concern is the warm hide, which sometimes gets up to 88° F, but usually sits around 85-86°. Is that too cold? Are there ways to make that warmer without making the basking surface on top too hot? The staircase platform and the exposed portion of slate underneath sit around 90-95°. Any thoughts/suggestions are welcome!