I agree....the courses with Anders in Acoustic 1 will really help you. My strumming improved immensely. I did have to watch the videos multiple times, too.

You might also want to try to play along with people on (dare is say?) YouTube. I found it very helpful to see differnt people strumming and trying to keep up with their pace and rhythm. Of course, you can do that on here too and just search for the Easy or Beginner song tutorials and start learning some of those.

Good luck! You'll get there!