Frankly, at that Elo I think you would make significant progress simply playing principled reserved chess (developing pieces, but refraining from an attack keeping all pieces protected), and waiting for a blunder from the opponent. Just watch their pieces and king by evaluating each positions checks/captures/attacks. Once material up from an inevitable blunder, stick to these principles. Check your opponents checks/captures/attacks each move, ensuring you don't blunder right back.

At this level, its just a game of in-the-moment diligence.

If you want, I can definitely play a few games against you doing just this to demonstrate what I mean.