Introductions discussion

Greetings all. I’m a newcomer here. A while back, I was wearing a chastity device and really enjoyed the sensation of being kept under lock. Previously, I had a CB6000 model, but it went missing during my move so I bought another one. Somehow, the tube seems too narrow for me; I couldn’t get in properly and even managed to snap it while forcing it on. Does anyone else experience this issue, or do you have recommendations for devices that might work better?