Something else you can try doing, if you want to work on your chord work, is to try playing various chords over and over (to help build how fast it'll take you to make them). Here are four chords that you can start with... try playing them in this order then switch the chords around to make different progressions (C - A - D - G, D - A - C -G, etc...) until they each feel comfortable for you.

A C D G
e |--0---0---2---3---|
b |--2---1---3---3---|
g |--2---0---2---0---|
d |--2---2---0---0---|
a |--0---3-------2---|
e |--------------3---|