You certainly have the right mental outlook and dedication to reach your goals. I'll predict you won't have any problem. If you have a range that has longer distances to shoot, I would recommend that you practice at 400 or even 500 yards. It will make that 300 yarder a chip shot when the time comes. I use clay targets laid out on the face of the berm at longer ranges. It's great practice to learn wind holds and trajectory.
