your bow how long have you had to pull ti back when hunting

I have held it back to the point where my shaking bounced the arrow off the rest[:@]

That buck gets bigger and bigger everytime I picture him running away

LOL

Not very long, I get shakey after about 20 seconds or so. I don't draw until I'm ready to sling that arrow, ever. I wait for the perfect position and I slowly draw, find my spot and release, all within 10 seconds.

I normally don't draw until the buck is reasonably close...under 35 yards...to avoid this very situation. One of the worst things to feel is not being able to hold a steady aim because of holding the string back too long so I try to avoid that type of situation at all costs.

I missed my first shot at a doe this year because i held my bow back for over 2-3 minutes no lie[] I couldn't get my body to stop. Next time i will just let down and wait for another shot opportunity.

For me, this all depends on my cover set up and what the wind is doing in relation from my stand to the animal. If I'm in a stand and the concealment is good, the wind is in my face and the animal is coming 'towards' me--then I wait for the best shot opportunity, before even drawing my bow.
On the other hand, in areas where that cover is not as good, my game plan changes. 'Movement' becomes a serious factor, standing still--you'll either get the chance, sometimes you will not. I choose to execute shot when I am most confident & comfortable--otherwise I'll pass.
Holding a bow at full draw (for myself) in excess of 20 seconds isn't something I like doing. It becomes uncomfortable, my chemical transmitters starts second guessing myself, holding the bow at full draw, waiting, moving the pin searching for the kills zone--I've got a shot, I don't have a shot, too many factors to think about, then the hand starts to wobble, you're running short of air--a perfect scenario for what could be a terrible 'punch' shot!!

I was drawn back on a doe for what seemed like an eternity but ended up being only a minute. I was shaking pretty bad and my arms were burning so I let down and all 6 deer ran off.

I would probably say the longest I have held is 2min. on a bull one time, which seemed more like 5min. Alot of times when calling elk, when a bull comes in, they come head on, facing you. I keep a reed in my mouth, and cow call softly till they turn and offer a broadside shot, and that when it seems like time goes by at a stand still.

Before anyone jumps on me about holding my bow up to two min., it actually probably was a min. As I was'nt timing myself.
Just for a test, pull your bow back, and have someone time how long you held, and see if it matches your estimation. []

I can agree with robinhood36 because I too have had to hold for quite a long time when a bull elk is coming in head on. Most of the time I try to use the buddy system to avoid this but sometimes the buddy system isn't possible and you are at it alone trying to call in an animal, and sometimes it doesn't turn out how you planned. I have spooked a couple animals off because I had to let down my bow. [:'(]