Hi
It's hard to say without knowing what you have tried so far. Have you tried understanding opening principles? I just looked at the last game you played against Basel to see if I could see the problem. After 6 moves you're doing ok. You have developed your centre pawns and have removed white's ability to castle via the bishop exchange on f1. At this stage you are probably slightly ahead. However, 7. ... g5 and 8. ... f6 are really horrible moves. First of all, notice how after 8 moves all your pieces are on the back rank. No piece development at all (white has three pieces out by the same stage). Even worse, you have opened up your king to attack by moving the f and g pawns forward. Actually, you put all your pawns on black squares having already exchanged your white-square bishop. The consequence is that white can easily invade the white squares (e.g. 9 Qh5+) and the game is nearly over. The reason that white can sacrifice the knight with 11. Nxg5 (which would lead to you losing your queen if you accepted) is because you have no development. When one side has a big lead in development tactical opportunities always occur.
Your king never gets to castle and you get ripped apart.
Do you know about making sure that you develop your pieces early on? A typical opening is to move the central pawns forward, then get the knights out, then develop the bishops, then castle. If you stick to these principles in the opening it would make a huge difference.
When my last two active games stop messing me about I will have a rank of 1354.
Mentally I feel able to make moves now with much more confidence that I will not make an amateurish mistake but after 259 games I have the following
116 wins, 116 losses 10 draws. 17 timeouts.
I have only improved by 154 points from the start (1200). Maybe I am just not cut out for chess.