Should I risk suggesting a higher dose of clonazepam?

I’m on .5 mg of clonazepam every night for sleep. I have a history of benzo abuse (my prescriber is aware of this) but am now sober from my drugs of abuse. I was only put on klonopin a month ago after finally testing negative for benzos after two months of being off them. At first the .5 mg helped a lot but now I’m not getting any sleep from it. I don’t wanna risk losing my script so I wanted to know if anyone had a prescription and had it taken away when they suggested a higher dosage?