Analyze your lost games and learn from them.
If you wanna be good at chess in two weeks solve alot of puzzels and try to solve them correctly
You can use chess.com puzzle section and try to reach 1800 in chess puzzle rating
in 2 weeks you can become worse!
in 2 years you can become nothing!
in 20 years you can become a player!
Or try a magic wand -) (hoperully it will work for me too -)
lol
Very good at chess in two weeks... No can do.
Even gifted with photographic memory and an IQ like Einstein, it's impossible. Even if you worked around the clock two weeks in a row.
A VERY gifted person may achieve that in two or three years. Chances you're that are close to zero.
Just saying, in case it's not a troll post nor a stupid joke.