Then, buy a 22lr version of the AK47 or AR15. Practice with it. A lot. After you get good with it, then get a real AR15 or AK47. I suggest this because of the high price of ammo these days. Better to fill the learning curve with bullets that cost $20 per 500 rounds than $20 per 50 rounds.
If you want to hunt, then ask yourself what you want to hunt. If you're hunting small game like rabbits, then get a 22lr rifle. If you're wanting to hunt large game like deer, then get something with a bigger bullet, like .308 or 30-06 or 30-30 or 7.62x39. If all you're doing is hunting, then get a bolt action gun for greater accuracy. A CZ 452 in 22lr for small game or a Remington 700 in .308 for large game. If you're considering a bolt gun, then get a CZ 452 or a Savage or any American made 22lr rifle such as Remington. Then, after much practice and you get good, purchase a Remington 700.
If you're gonna use the rifle for hunting AND home defense then, get an AK47 for large game and home defense. It uses a larger 7.62x39mm bullet. Get the AR15 for home defense and small game hunting. It has a smaller .223 cal bullet. You can use .223 for large game, but you'd have to be a really good shot or it won't be as effective. You can use 7.62x39mm for small game, but you'd have to be a really good shot or it will destroy a lot of meat.
Have fun with guns,
P.S. if All I could ever own was just one rifle, I'd get the Kel-Tec RFB. It is designed to be as accurate as many bolt action rifles, but it is semi-auto. It also fires a very powerful bullet that puts AKs and ARs to shame. It is also very handy because it is of a bullpup design. This allows it to have the long accurate barrel of a full size rilfe but in the small size of a carbine or submachine gun. Plus, it ejects the shells forward so they don't hit you in the eye. You won't be wearing "eye protection" in a surprise firefight to save your home from BGs. BUT, the RFB is expensive.