Accurate shooting, how far is to far

I've been shooting a bow since I was about 10 I'm 26 now and have been hunting since I was 12.But it has not been until the last 4 years that I've started to extend my maximum shooting range. I would of in the past never make a shot on live game past 30 yards.Now that I have been focusing on good shooting form and expanded my distance by about 30 yards. I now am confident that I can make a 60 yard shot if needed.But really how far is to far. Is it what you feel you can make if a certain shot presents it self. I'm not talking about shooting hail marry bombers of a shot that is not at all realistic.I've seen people make some crazy shots say 80 yards. To me though that's 20 yards too far. But it is realistic for some shooters. Is to far what you know in your head you can not make.Even more to far is when you shoot and you knew it was to far but the buck was so big you shot any way. Last year I passed up a big 10 point buck. He was not to far for me to make the shot. He was 45 yards away,but he had spotted me in the tree. He could not smell me so he was just standing there looking stopping his foot. I could of drew my bow and made a clean shot,but the buck was facing me the hole time until he bolted away.So how far is to far?Its what you think you are truly capable of and that only you know. Good practice is the only way to achieve those shooting goals .Shoot farther and farther each practice session.Make each shot count as if it was in a real hunting situation, certainly your first shot.So how far is to far is up to you and your confidant's. Just because you maybe able to shoot 60 yards on the range doesn't mean you should shoot 60 yards in the field.