If you cannot play the chords and switch between them it does not matter what else you work on because a song does not flow if the player has to stop strumming long enough to switch to the next chord. No one else wants to listen to a player who has to stop every time they start getting into the rhythm to change chords.
Take your time to hit them correctly every time no matter how slow you have to play to do it. I did not make this up, but perfect practice makes for perfect playing. Rushing to learn and playing sloppy lets your body (muscle memory) learn it sloppy so it will reproduce it sloppy latter.
There is a reason music teacher’s in general keep the progress slow. It takes a long time for the body to learn all this. So what if your brain can send make an F chord to your hand if the receiving muscles do not know how to use the information?
This site has everything to offer that it takes to lean to play. It will allow you to move forward way faster than you should if you let yourself. Don’t do that. Just because a person can use a measuring tape and cut wood to put together a dog house with a hammer and nails, it does not mean that person is ready to go build a house.