I have had 2 accidents,one a marthon heli rescue off Forbiden which included a compound fracture of the tib-fib and smashed helmet. The other, a block of ice broke my scapula and knocked me out.
Prior to these I had the normal close calls, but until I inccured a major injuiry and long recovery period, I didn't have any lasting mental effects. Taking a clean air 80 footer is not the same as 40 feet of tummbling, smashing cart-wheeling down a jagged not so vertical cliff. That for me has had lasting effects. I'm far more cautious and I'm always making sure there is good pro above. The bigger problem is the feeling of being trapped on a climb because of inquiry to me or my partner, this has kept me from presuing my bigger objectives, which I use to dream about. I battle with these feelings on just about every climb big or small. Maybe some of the hardmen can put such accidents behind them, but I find it very diffcult. It might also has something to do with age, perhaps if the injuries occured when I was 22 instead of 42 it would be easier to move on unaffected or at least the physical recovery would be quicker.