Why am I getting minus 25 points after a mistake in my puzzle rating? While I'm getting plus 4 or 5 for a correct solution. It's so annoying and unmotivated.
Because you are doing puzzles rated much lower than your own puzzles rating.

If you choose to increase the difficulty of the puzzles, you will gain more from a correct answer and lose less from an incorrect one.

Why am I getting minus 25 points after a mistake in my puzzle rating? While I'm getting plus 4 or 5 for a correct solution. It's so annoying and unmotivated.