Difficulties with wearing a device? discussion

Hey there. I’m keen to get started with chastity, but finding the right cage has been a real struggle for me so far. Right now, I’ve given a cb-6000 knockoff a go using both the 2” and 2 1/4” rings, yet my testicles keep getting chilly in both sizes. I haven’t managed to track down any bigger ring options, though, so I’ve ordered a Holy Trainer V2 knockoff to see if its shape makes a difference—though I’m not holding out much hope. Could I possibly reduce the size of my penis base? My shaft isn’t particularly large in either girth or length, but for some reason, that bottom part seems quite bulky. Is it possible that having fairly big and tight testicles is causing me issues? Would stretching them out a bit make things easier? I’m starting to run low on ideas here. Being a 19-and-a-half-year-old student still means my budget is limited, so I can’t really splash out for a custom cage just yet. Any guidance would be massively helpful. Thanks!