Great article... I'm sure only a GM could write that.
5 things I hate about Chess!

Some of the articles of GM Parimarjan Negi are extremely good.
http://parimarjan.in/blog/anand-carlsen-for-dummies/
http://parimarjan.in/blog/fast-forward-five-2018/
http://parimarjan.in/blog/world-championship-what-people-are-saying-and-thinking/

http://parimarjan.in/blog/is-training-too-boring-for-you/
Or just train tactics if you can't find the motivation to study technique or endgames.

Related to what N2UHC said, seeing the best move but not playing it or rejecting it out of a misevaluation =(
An article by GM Parimarjan Negi.
http://parimarjan.in/blog/5-things-i-hate-about-chess/