So I just realized that my hammer-on's and pull-off's are kind of lacking, and this is kind of making it a lot harder to play I guess, since now I am adding percussion into songs.

I am now finding it hard to strum or hit notes, add the percussion parts, then make it back to the strings in time to hit the next note. I was just watching a YouTube video where the guy was replacing some of the picking hand stuff with hammer-ons.

Any ideas on how to improve my skills with those?