I also have to suggest giving it more time. I have a
BX24 and live on a very hilly property. When I first got the machine, I was very nervous many times driving around or getting out of areas that I was excavating. I have about 125 hours on the machine now, and I feel much more comfortable on it, but there are some hills on my property that I would not dream of driving on sideways; there's even one that I feel that I have to back up when I have my backhoe on to avoid my fear of having the front wheels come off the ground.
Also, I've accepted that I may topple over onto my side one day. I feel that I've mentally prepared myself to not instinctively put my hands down to break the fall or anything, kinda like how you train yourself not to just slam on the brakes in any traffic condition, but react properly, be it brakes, gas, steering, accepting you're going to hit something but aim for the non-living thing, etc. I've read a few threads now about people tipping their BX's. It happens, so I always hold onto the opposite handrail and am prepared to fall and shut off the engine quickly. And my ROPS is always up, seatbelt on.
As for the ROPS, mine doesn't clear my garage either. I drove into the frame twice when I first got the tractor, and I won't be surprised if it happens one more time. It's not a big deal for me to fold it down when I put it away. It's just part of my routine. I fold the ROPS, drive in, park, idle down, turn it off, caress the steering wheel, kiss the loader, hug the backhoe, and go inside cursing the clock.
Definitely give it more time. If you got the tractor that best fits your needs, you should keep it, imo. You'll get used to it and feel better in time. Just don't try to force bravery on yourself or something. If you're not comfortable doing something, don't do it. Try it another way.