If amputation solved this it wouldn't be so bad. It does not and often makes it far worse.

I have limited pain most of the time but in order to avoid the pain I must go to extremes in how I live my life. My problem is that usage tends to bother me a day or two later and I never know what's harmful. So it's a balancing act between doing as much with it as possible and trying to avoid the pain later.

I could live a normal life with one hand.

Everyone's different. But as a rule you need to learn what helps and what hurts and you must use the affected limb at least a little or the condition will worsen. As a rule you need your sleep and you need as little stress as possible. There are meds that will help almost anything that goes wrong but most of the meds to help RSD pain have limited effectiveness. The pain itself (and emotional pain) are hard on your health and are to be avoided as well. Find things that work for you and ask questions.

Best of luck.