91explorer1009, did you finish? For novices, the flush, "T" thing is okay, some of us just take excellent care of our vehicles and don't need the complicated processes etc.
Replace the heater hoses, yes with factory type prebent stuff, those are the weak links, they wear out and blow. Use as little antifreeze as possible, water is a better coolant, less water percentage means higher operating temperatures. Drain as much of the old coolant of of the radiator and save to recycle. Do the drain/flush thing as needed, dirty cooling systems do need that.
Buy Water Weter(Redline) from Autozone etc, a coolant tester, and start with a gallon of antifreeze plus one of distilled water. The system may hold over three gallons, but start with that, and test the freeze level with the tester. Add water until the tester gets to above your lowest Winter climate temperature. I'm betting that you will not need any more antifreeze. If so add it to the overflow bottle. Check coolant level after driving shortly, and a day or two later(several heat cycles).
I use no more than one gallon of antifreeze here, we do see single digits a couple weeks of the Winter. With long life coolant(five years etc.) the cooling system stays clean and does well for years. Good luck,