Start by playing the root of each chord on one string then in position.
The root 3rd, Root 3-5 then root 3-5-7 etc. It is very frustrating but gets less so as long as you put in consistent effort.
I would recommend constant practice step by step not trying to figure it out in one day. If you continue this consistently you will find yourself able to learn things you found hard much easier to learn.
Metronome fear is something that guitar players have big time.
Yet we all go on YouTube to find a secret.
Here is a secret. Turn the metronome every time you play anything. You will hate it at first but your drummer will love you for it.