can someone help me figure out this video

I find it very difficult to follow transcribed strumming patterns.

I've tried playing along with this video and the strumming pattern is very simple.

Try playing mainly down strokes and add in an up down up at the chord change. It doesn't have to be exactly the same as her but you must get the rhythm right.

When you get the above bit sounding good and you start to "feel" the rhythm add few up downs yourself where it feels right.

Nothing is carved in stone, just listen and practice. Don't try too hard to copy because this will make you stiffen up.

Get into the rhythm, relax and play.