I would definitely research some more on various websites and sources to see what they recommend. Self-research is going to help you improve your learning and grow with your project instead of stumbling along from clear-cut directions from a forum poster.
Look into GPUs!
Agree.
As a little advice, I recommend you if you really want to do mining, research carefuly and start mining other currencies, which for sure will be much more profitable than mining BTC. Nowadays BTC mining is for the mining farms only. Try to find a coin that supports both PoW and PoS mining (if you don't understand what I telling about, search PoW and PoS on Google), it will be even more profitable for you, for sure.