I have a rather bad singing voice. That said, I have been trying to sing and play at the same time. The first few weeks it really messed up my playing.
After about three weeks, I finally figured out how to strum and sing Lying Eyes.
I have noticed that when I sing along that my playing suffers.
It is a work in progress. It's getting easier but my voice is still terrible.
Don't care as I'm only entertaining myself.