There isn’t a golden bullet in getting a good recording, its a culmination of little things you do that edge you closer to the pros. For instance if you gave any pro recording engineer the average run of the mill home studio gear and a living room to record in, they should be able to capture practically pro sounds. So don’t stress about getting million dollar mics and the rest of it. Knowledge is your weapon. The best way to get knowledge is to DO, but of course also read about and watch videos which will give you all the info you need. A good way to start is to look up the names of famous recording engineers and producers and see what they have to say. These guys have the results to back themselves up, which not all the articles and videos on the internet have.
So next time your trying to figure out how to get a better recording don’t think ‘upgrade my gear’, think ‘upgrade my knowledge’.