Plant things you like to eat.
Also, use the search function on this site to look for "Dr. Redhawk's epic soil series"
Also, learn to embrace failure. Personal observations are the most potent lessons. By simply planting a food seed or plant you are taking a quantum leap upward in your relationship to our source.
Enjoy yourself, sit in your garden, nibble leaves
Hey there - If you are able, visit/call your local extension office for your county. I know the Covid restrictions have really put a damper on in-person instructional classes but they should still have plenty of reading material and even some online courses that will help you get started! Most stuff they offer is free :)
And don't be afraid to fail! For every lush, productive plant you see in a longtime gardener's garden, there were ten (maybe a hundred!) that went belly-up. You have to try things, see what works where, learn what you're good at growing in the space you're in. After gleaning some of the basics from books and guides and whatnot, experience is the very best teacher.
To paraphrase one of our NW garden gurus: "The best gardener is the one who's killed the most plants." :-)