Well it will be tough going for a while. 3 things greatly affect where the arrow will land and 2 of them are pretty major, you and the bow. The arrow is the third but there's less to that to figure out. Until you get things going in the right direction you won't know which of the 3 is causing you the trouble. Just start shooting and try and narrow things down as they come up.

Look your equipment over and make sure it's safe to shoot. Check the strings for cuts and the arrows for cracks. Make sure any thing that's on the string will stay there after a shot. Stuff like that. If you can't figure out what your draw length is get some help, that is if your new rig is changeable. If the length of the bow is to long you might want to think it over.You don't want to seewhat a string can do to an arm. Very painful.