Hello Alex:

I have read the replies to your note.

They say that you lose because they are higher rated than you, and they
may be right
They say that you hide your opponents name, and they may be right
They say that it has nothing to do with the game analysis, and they may
be right

but nobody say you have to study concepts, middle game, development of
your pieces, tactics, take care of double threats, pins and general
ideas on the game

I would recommend to begin by reading Nimzowitch "My System"

I know... they may say that this is a very old book, not updated, and
they may be right!!!

best regards
Luis