If you want to become a really good chess player it is essential to play, learn and practice as much as possible, good websites to look at are Lichess.org or chess.com, there are also some very good instructive videos on YouTube, which can help with Openings, Tactics, Middlegame and Endings. Just ask if you need guidance on any of these items.
These topics are typical of what will be covered over a period of weeks, copies of this are available, ask if you would like one.
YouTube Videos available on these skills by NM Nelson Lopez
YouTube links for sections 1 – 6:-
Section 1 – https://www.youtube.com/watch?v=MTgUJ219JIo
Section 2 – https://youtu.be/86Is6YemsyA
section 3 – https://youtu.be/o74M2vKYpcc
section 5 – https://youtu.be/GfmDBpbqMAI
section 6 – https://youtu.be/MbMslp2WcI0
Learn all these and your rating will go from 0 to 1000.
section 7 – https://youtu.be/qCVNza5-09U
section 8 – https://youtu.be/1cBb010-yo4 + https://youtu.be/wVSCgbKa1ZM
section 9 – https://youtu.be/DpFABAfduQg
section 10 – https://youtu.be/BYtXMJjqfvw
Section 14 – https://youtu.be/kDXICfU8h_s
Section 16 – https://youtu.be/dr5sA-IzEmM
Section 17 – https://youtu.be/kZH_WKuqh5c
Section 18 – https://youtu.be/Bo93mIhnDz4