More resources for improvement are
•Woodpecker training on chessable - For building pattern recognition (Paid)
•Remote chess academy free masterclass (Free)
•Chessbook "How to choose a chess move" by Andrew Saltis - To improve chess thought process(Paid)
•Aimchess - Analyzes the games to give personalized lessons(Free with paid features)
Oh yeah, one can also read Dvoretsky's endgame manual for free (although a lot of the content seems to be directed at 2000-rated players+):
Dvoretsky's Endgame Manual
There is another book named Mastering Chess strategy which I prefer for puzzles and exercises. How to reassess your chess is good for conceptual understanding but if you want examples to study for each concept as well as their corresponding positional puzzles and exercises this book is full of it. I think both books must be used, for their respective purposes.
If you want games to study then
•My 60 memorable games
•Paul Morphy - A modern perspective
•Life and Games of Tal, both biography (maybe autobiography) as well as contain his games you can study
•My Predecessors
Here are a few resources you can use to make progress beyond 1000 rating:
chess-trainer.com: The Interactive Chess Visualization Trainer
Silman's Complete Endgame Course : Free Download, Borrow, and Streaming : Internet Archive
Feel free to share any resources you have found helpful!