Congratulations on the new guitar, FilmGeek! I hope you two will be very happy together.
I agree with your OP re lessons – they’re really indispensable. Having said that, there are about a zillion books available, although you may find the crap/quality ratio is pretty high. I’ve seen a boatload of free video guitar lessons on YouTube, but the same warning applies.
If at all possible, try to play guitar every day, even for a few minutes. Your left hand and wrist will get sore, as well as your fingertips, but be patient, this passes after a relatively short time.
I think feppytweed’s advice is good – go find a chord chart, and learn as many of the open major and minor chords as you can, in the order feppytweed mentions (although I’d add Dm).
After (or during) that, pick a song you’d like to play, find the tablature if you can, and work on it. For your first assignment, choose something simple using open chords. “House of the Rising Sun” is a perennial beginner’s song if you like that one. Its four or five chords, picked as arpeggios, so it works out your chord-changing muscles as well as your picking accuracy. But it really is a dead-simple song. My son, who is nine, picked it up pretty quickly, although I can’t say his rendition is very smooth yet. Or choose another song, and give yourself a time limit to learn it, or give yourself a reward when you can play along with a recording of that song without too many mistakes.
ETA: report back here and tell us how you’re doing, once you’ve chosen how you’d like to proceed, and have taken some baby steps.