I've been studying for months, and I have seen no improvement in the way I play. I still make stupid mistakes, can't calculate, and I'm scared of going into rated matches. I lose a lot, and I get incredibly angry when doing so because it feels like I'm just stupid.
First off, here's some advice:
1. Only play when you're feeling good, you'll be at your best then
2. Don't continue losing streaks by playing more games, take a break, and then come back the next day if you feel better.
3. Always look at the whole board, and look at the threats, and determine if actions need to be taken.
4. Whenever you lose a game, analyse it, and look at the graph for the 3 major points in the game that impacted it the most.
5. Don't be scared, your opponent can't hurt you physcially, and don't let them hurt you mentally. If you lose, it's not because of bad luck, but rather performance.
6. Use websites such as chesstempos to improve calculation skill
While intelligence may be a factor of how easily you can learn chess, it's not the most important factor by far as proven by kramnik. I believe that the two most important factors are your personality, and how well you can handle your emotions. If you just wallow in self-pitty, you won't improve, however, if you take your loss and ask yourself "Why did I lose, and how can I prevent that?", you'll find yourself becoming much better.
The method of studying is also important, if you don't mind telling me the way you study, I can give some advice to improve upon that.
I've been studying for months, and I have seen no improvement in the way I play. I still make stupid mistakes, can't calculate, and I'm scared of going into rated matches. I lose a lot, and I get incredibly angry when doing so because it feels like I'm just stupid.