This is for anyone greener than me starting their journey here.

I highly advise going through all three "Fundamentals 1" versions here, including the discontinued version. While technically they all cover the same information, each instructor has some really valuable personal tips and tricks and philosophies. (p.s. the spell checker here seems to be broken). While I am waiting on my left hand to catch up to what my right hand and brain can do, I am working through all three, including the recommended practice songs, and my journey will be better for it.

Get a guitar that fits your hands and body: I was struggling with my cheap generic learning guitar that I started out with. The action was stiff, so I had to exert a lot of pressure to fret a note. I also have large hands, and my fingers did not fit in the frets. I bought a relatively inexpensive (but higher quality) wide neck guitar, and all of those problems went away. I gained months of skill in one day.

Find some cheap easy wins. For me, that is the two chord version of "Horse With No Name" for chord changes and rhythm, "Smoke On The Water" Easy Version for moving shapes up and down the neck, and a variety of riffs and basic melodies for single note picking. I have the first few bars of "Wish You Were Here" Theme 2 of "Hanuman" and "Happy Birthday" in my practice session.

Don't be afraid of music theory. I've read up on it, watched some videos. It's mostly Greek (or I guess Italian), but it is comforting to know that it is there in the background, and every once in a while you will get an epiphany of understanding that makes you feel smart.

Be patient. Have fun. Nothing that you are good at now, happened overnight. For most of us, that will be true of guitar too.