Chord changes can be a very frustrating thing especially in the beginning.
Here is how you can overcome the frustrating phase with a little bit of smart practice.
If you want to learn more about the theory behind your chords, read this article
1. Light touch-to-press chord changes
Once your fingers are in the right positions of whatever chord you want to learn, DO NOT IMMEDIATELY squeeze. Just slightly rest your fingertips on the strings without pressing down the strings.
Then you squeeze the fingers down SIMULTANEOUSLY in a very short burst.
This teaches your fingers to come down to the string in a synchronised way.
Instead of finding their place once after another which is a certain way to never mastering ANY chord.
2. SLOWLY and GRADUALLY increase the distance between your fingers and the strings
Your aim is to gradually increase the distance between your fingers but always land in the right spot with every finger.
If you miss, you must go back a little bit and practice on a lower level before going higher again.
You do this until you reach a point where you can put your chord shape to the fretboard without missing.
3. Combine different chords and change between them
When you have learned to play a few chords reliably you can start combining them and switch back and forth between 2, 3, 4,… chords.
Pay attention that your fingers still land all at the same time in a synchronised way.