https://support.chess.com/article/2016-how-do-puzzle-ratings-work
You are rated 1456 now. I can only see your last 25 but I don't see any examples of you doing any 2000-rated puzzles and losing 15 points.
It seems you lose 10-16 points for getting puzzles rated well below your current rating wrong.
https://support.chess.com/article/2016-how-do-puzzle-ratings-work