yeah go by how ya feel
no go by results
one should lead to the other if you know what to look for (feel for)
Is there a maximum or minimum amount of sets I should be doing depending on the bodypart (chest, back, shoulders etc.) for maximum growth?
The best way to train, is by asking some idiot you've never met, hell, that nobody has ever met, for advise. You're off to a great start.
We are talking about sets here, not anal sex.