2 months is an awfully short time to be playing chess and you are already over 1400 online? I'd call that near spectacular progress; you have nothing to be depressed about. One of the attractions of chess is that it's really hard to master (or even "mediocre"). You're doing fine, just keep at it.
How many games?
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I'm kinda depressed here, I started to play some 2 months ago, this far some 400 games aprox. won almost half, lost almost half. The more I practice, read, play I see no improvements at all. I review some of my games and I can notice where I blundered, however that does not stop to make same kind of mistakes in other games.
I'm trying basically some 4 or 5 openings, mastering no one really. I like queen's gambit for instance. Started with king's gambit with awfull results. I'm even worst in blitz I guess. I usually run of time even with good material advantage.
I expected after playing some my wining ratio would be any better but it's not the case at all. Even worst, my understanding of the game is not improving much.
Any tips welcome. Thanks!