I have to say, the idea of lowering my goals in light of increasing stress haunts me at night. It would be so easy (or at least it feels that way now) to just stop being ambitious and stop chasing the dream, as stress levels increase along with risks. I just can't do it. Even though it's intensely stressful at times, I think that striving for a grand goal is a part of who I am, in much the same way that my personal stress tolerance is. If I was going to change anything, it would be to reduce my stress through any other means than to stop trying to achieve more than I am physical capable. I take nootropics, stimulants (light ones, these days, though I had previously been on much stronger ones) for cognitive/performance enhancement so I can excel further than I would be able without them. I could have removed the need for them, but that, to me, is a far worse fate.
Just my thoughts.