Issues with chastity & becoming unsure if it's for me

I've always found the idea of chastity exciting and arousing, the embarrassment of being locked up, the control someone can have over your orgasms, the denial itself, etc.

Every time I put on the cage, I get horny and excited for a while, and then it slowly fades when I want to take it off and actually cum. How do you learn to enjoy the denial and embrace it?

I've also realised that I can't wear it at work because it's pulled in a weird way when I sit at my chair and eventually hurts, leading me to go to the bathroom and take it off. It feels like I can't wear it full-time physically due to discomfort, and it feels like I can't wear it full-time mentally because I'll eventually find it more annoying or frustrating than fun.

How do I tackle these issues, or do I just go with the idea that it's not for me? My girlfriend is even on board with locking me up, which I find exciting as well, but it still eventually turns to annoyance and discomfort :(