I'm trouble singing and keeping a strum pattern at the same time, what's a good song to start with?
Anything. Take something simple, simplify it if you have to, and just practice. Gradually build up to more complex rhythms and singing.
Start with a song you know very well. I started with Needle and the Damage done by Neil Young. The lyrics follow the chord progression, and you can simplify the guitar playing too.
wish you were here is ez one.. C D Am G repeat ..is the chorus slower paced too.