When you notice that you have issues with certain note combinations like this, that's when you should start learning how to play one-handed. I don't mean to fully change your playstyle and only work the keys with one hand, I just mean that sometimes, it's necessary to be able to do certain parts of songs with one hand on the turntable, and the other on the keys. No, it won't be easy to do at first, but if you keep at it, you'll get better.
__________________  |