Being in the hobby only 3 years, asking lots of question is one of the best things you can do. I know its hard to sift thru, and be sure about whether the advice you take, comes from an accurate source, but there are many good sources here on MFK, and if you look, the reputations are very solid. There are also people who have only been in the hobby 3 or 5 years who think they are experienced, though time is not always a barometer, it counts.
I started keeping cichlids in the late 1950s and still have many questions, and have made many, many mistakes.
Much of what I reply to threads comes from those many mistakes, and their resolutions good or bad.
Fish keeping also lead me to a 20+ year career in water treatment chemistry and microbiology, which has helped my understanding of the invisible part of fish keeping immensely.