What’s a good way to practice chipping/putting in my basement and have the best feel to actual golf?

I’m guessing I should get a synthetic mat or something?

Buy a putting mat. Try to avoid the kind that are straight, go uphill, then pop out the golf ball back at you. Get the kind with actual holes! Also, i would recommend buying a large net so you can hit real golf balls into it. Obviously, you can’t see where it will land, but you can practice hitting the ball cleanly while chipping, pitching, bump and run, etc. You can also practice full swing by videotaping yourself. Fake golf balls are too light and make the adjustment to the actual golf course too difficult.