practice makes perfect, I have done it since i was 9, im 22 now and can stalk deer across any terrain, but i learnt from practice, watch the animal, when it becomes alert, stop dead and wait for it to carry on, then keep stalking it, tread lightly, dont have shiny or rattling objects, buy some realtree camo and a good set of boots and get amazingly good with your gun, practice shooting eggs, coins, cans on string, old fruit ect and test yourself, shoot your targets free hand standing and give yourself between 3 seconds and 5 seconds, thats how you get good. Ask to go out with someone, when I was 13 I went and knocked on a gamekeepers door and asked for help/tuition and extra shooting, now im basically the underkeeper. Good luck, I remember when I started, From here on, every day will get better!!!