Learning the rules and tricks to chess is nice, but they won’t win many games on their own. Only when combined with plans and strategies do the tried and true rules win in chess. At least, if you wish to advance past 1500.
Rooks go on open files. Look for holes for your knights. Castle early, castle often. Bishops are slightly better than knights, especially in the endgame. Opposite color bishop endgames are drawn. Kings should centralize in pawn endings. On and on. These are all generally true, but if you just apply them mindlessly without considering the goal/aim of the current position, you aren’t going to win very often.
Now, seeing and understanding the purpose/aim/goal of any given position takes time and experience. For instance, if you have a mate in three on the board but you move a rook to an open file randomly, then you’ve done a disservice to the position and your game. Or maybe the opponent is going to mate you in a few moves and you don’t bother defending. Instead, you find a nifty outpost for your knight that means absolutely nothing in the given circumstance.
I could teach a ten year old all the basics of welding inside of an hour. But when he starts welding, guess what? He’s going to get burnt. That’s just the way it goes. The rules are there for us all to know, but if we just repeat them like parrots instead of understanding them, our games are going to suffer.
Play as many slow games as you possibly can. Think about what you can attack each and every move. If you can’t attack anything, prepare an attack. If you need to defend, then defend. If you see something loose like a pawn or a piece, attack it. You want your opponent on the defensive. If you mindlessly obey the rules you can parrot, you’ll get checkmated because your opponent is watching for your mistakes. We should all be doing the same.
Learn those rules but understand them, as well. Some positions call for certain plans, while others call for different ones. Recognizing the plan is the hard part but once you do see the goal, the game often plays itself. Just stick to the theme.