250k over 1200 = 1 in 208 before insurance co profit. Is your chance of death while flying really that high per year? My rough analysis suggests it is closer to 1 in 2000 (for active RAAus pilots), still alarmingly high.
If you have aviation disease, and it seems like you might, you will not give up flying. Can't get insurance so what to do. The only way forward is to manage your own risk. I have studied light GA aircraft accidents long before I learned to fly 38 years ago age 21. If you avoid the big three, stalling in any phase of flight including after engine failure, VFR in to IMC, ie flying in cloud while not rated for it and low level beat up you will improve your risk of not dying in an aircraft accident to very near 100%. Treat each flight as a mission and plan accordingly. Think what is going to happen in the next five minutes of this flight as you fly.