The biggest thing you have to do with bow hunting is learn to judge range...
The arrow will drop about 1" for every yard of travel...
30 yards, 30" of drop.
(every bow is different, but that is a general rule of thumb)
5 yard miss in distance judgment means a 5" miss of the target, and if you miss the vitals, your dinner just got away wounded...
You missing dinner isn't the issue,
Wounding the animal and it living crippled or dying a slow, painful death is the issue!
When you first start out,
Go out where you are going to hunt,
And mark off your field of fire in 5 yard increments.
Use a range finder or tape so your measurements are EXACT.
Known ranges will help you get a grip on accurately determining distance in the field under hunting conditions, and will make you a better hunter in the long run...
Remember, When Hunting,
Your duty is to make a CLEAN KILL, or let the animal go!
(letting him go today meas you get another crack at him tomorow!
Scaring or wounding him today means you don't see that animal again!)
This is alike any other eye and hand coordination thing...
PRACTICE, PRACTICE, PRACTICE!
Doesn't matter how many fancy sights, bows, high tech arrows, ect. you have,
Nothing will take the place of familiarity with the weapon you are using!
People always ask how we can make 1,000 Yard shots with rifles...
Shoot about 10,000 rounds through that rifle, one carefully aimed shot at a time, and you will know EXACTLY what it's going to do at any given range!
Same with the bow!
When I was younger, I used to hunt everything from rats at the dump, to rabbits and squirrels, fish, even birds at times.
But we lived with the bows constantly and were constantly trying to 'One Up' the other kids with them...
I probably don't have the ability to hit rabbits or birds now, but fishing and squirrels shouldn't be too bad with a cross bow...