BrandNewToThis,  guitar_guy1083 makes a really good point:

"A good idea would be just to learn the basic cords like A, E, C, D, Am, Em, Dm, F, and G. Learn those nine chords and just practice switching between them in different order with different strumming."

As a teacher who specializes in adult beginners, I would suggest paring it down even further for starters.

How about G, C, D, and Em? Those chords are likely to show up in many songs that are in the key of G. 

And don't worry if the tone is not great yet - what is most important is that you be able to go from one chord to another as smoothly as you can manage. 

One of our responsibilities as STUDENTS is to keep a watchful eye on ourselves, and not shoot for goals that are going to put us in a state of overwhelm, filling us with negative thoughts about ourselves. That just ends up sabotaging the process.

If the lesson contains more information than you can take in right now, then simplify it on your own behalf.

Slow down, or go back and put more time into mastering things you learned earlier. 

Every single person learns in their own unique way, at their own pace.

Here at GuitarTricks, we have no hard and fast expectations of how quickly and easily (or slowly and with persistence) a student learns.

The lessons are here to support YOU in your desire to learn to play guitar. It then becomes up to you to pace yourself in a way that honors your love of music, your courage in learning to play, and keeps you out of the weeds of overwhelm or self-doubt (as much as possible - not always easy, lol!)

-Lisa