Playing by ear is getting in the way!

I'm not a good enough sight reader yet to just play beginner pieces. I end up having to repeat sections a number of times to "get" them. But, in doing so, I quickly memorize such sections (I took Suzuki piano as a kid and have an excellent ear...I've also been playing guitar by ear for 30+ years).

It's a Catch-22...I desperately want to learn to sight read, but my ears keep getting in the way. I feel like I'll just never get past this level. Is there any hope? Anyone have any strategies?