suddenly getting worse and worse
Other fundamentals to focus on- keeping your pieces safe and look for unsafe opponent pieces. What isn't defended in this position? Almost every game you'll be given at least one or more chances to go up material without doing anything but capturing a free piece. If you can avoid doing the same, you'll likely win the game.
Start with mastering those fundamentals and you'll probably get better results without doing anything else.
Here are some recommendations for you and some good YouTube channels as well:
https://www.chess.com/blog/nklristic/the-beginners-tale-first-steps-to-chess-improvement
Improving Your Chess - Resources for Beginners and Beyond
https://www.chess.com/blog/RussBell/improving-your-chess-resources-for-beginners-and-beyond
Good Chess Books for Beginners and Beyond...
https://www.chess.com/blog/RussBell/good-chess-books-for-beginners-and-beyond
Hi.
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