you are very welcome. glad to help .
about chord changes... the idea is to make chord changes eadier and second nature.
When you change chords you should look at two things:
1. Are there any notes and fingering in common?
2. Are there any notes in the new chord that although different notes from the original chord the same finger is used on the sane string?
Changing chords is definitely easier when there are more reference points. For example where your hamd is on the neck or your fingers on a string.
So, for 1 you keep that finger on the same note and use that as an additional fixed reference / anchor point for the chord change. Obviously if the finger changes this doesn't work.
For 2 simply keep the finger on the string but slide it along the string to the new location.
Do this for all commom chord changes starting with changes in the songs you currently play.
Then comes practice:
Do each change looking at what you are doing. Try it a few times. Be aware of your arm positions, hand, fingers... the way the guitar feels in your hands for each chord.
Now do the same with your eyes shut tight. This reduces the amount of external stimulus to your brain making it easier for your mind and body to remember what to do. You learn faster and it helps you to develop a closer bond with your music. I also recommend singers do some practice with eyes closed paying close attention to breathing and the mechanics of how they produce their voice.
This way we build "muscle memory" far faster, and those chord changes become faster and smoother plus your ear will become more attuned to nuance and feel.
Pretty soon it's fairly automatic.
Repeat the exercise sitting and standing... even when it comes to initially adjusting your guitar strap so you get a comfortable playing position. A big part is simply learning to shift your focus and listen to your body and the feedback it gives you for any action you take...