Absolutely useless at chess me. Not for want of trying though. Even to the extent of getting a mate years ago to try and teach me. He was a very good player and played competitively, but after a few attempts told me I would never be any use at all and to forget it. I did as I was told.
There's plenty of stuff online, e.g. https://www.chess.com/article/view/chess-strategy. However, moving from knowing where the pieces move, and a basic strategy, to something more advanced, involves a lot of study (that I've never been bothered to put in). I had a mate at uni who was very good, but he could remember hundreds of old games that he'd studied, and stuff like that, it wasn't just having a strategy, it was about memorising lots of stuff. I'm more into just learning the strategic side, and could never be arsed with remembering stuff. My brain is better at the algorithms, and not the data. I went along to the chess club with him one time, and played a number of games, moving round after each one to play someone else. I got slaughtered in all the games, but one guy then gave me a full analysis, where he said something like "I saw that at the beginning we were playing the opening of Byrne vs. Fischer, New York 1956, but then you made that move with your bishop, which nearly threw me, and I had to think for a while before I spotted what you were doing, that would have been a great move if I'd not have seen your plan, good game". I didn't tell him that I'd not had a plan, and was just moving stuff about almost at random at that point.
