If you are actively shooting for a high score, then you are doing it wrong, but if you are just having fun, then you're totally fine. I assume you are playing more T50 or FGs, with that record and score. FG losses will really hurt your score. It's a great way to get electrum, but a pretty inconsistent way to get score. T50 is good if you have a good deck. After 2000 games I assume you're playing fully upped. I prefer playing T50, but if there are a lot of tough decks and few farms, I always play AI3.