I'm with Hank for using the metronome.

Maybe don't start with chord changes.

Try a steady strum to a slow metronome.

Almost hypnotic, therapeutic.

1 strum every 4 beats and speed up.

Choose 1 chord and repeat the strumming.

Simple chord and pick 2 strings in time to a metronome.

Then 2 of the easier chords to change between. A to Emin and strum on the first beat giving you time to do the change, then 1st and 3rd beat even if it means slowing the metronome again.

Find the things that you can do . Don't dwell on the things we might all find difficult.

Most of all keep posting so we all hear about your progress.

Because there will be progress