I have whatever the opposite of a green thumb is. We do a fair bit of cooking but rent a pretty small apartment. We started growing our herbs. The basil isn't doing so hot (I think some asshole bugs were eating it while it was outside so we brought it in) but the rosemary is doing great! I also have a peace lily that I nursed back to health somewhat.

If I were in the position to start a garden, I would pick some pretty easy stuff to start with. A lot of vegetables are pretty set and forget so long as you defend them from critters at the start and keep bugs away. The most important factor is to grow stuff you actually want to cook and eat. Maybe make your very own vegetable tier list and then find out the difficulty level of everything that's in your S, A, and B tiers. Then just make a solid attempt at one or two as a practice run (or proof of concept) before investing next year in what you wish you'd had this year. If dipshits could figure it out 300 years ago, then I'm sure you could do a passable job learning it and executing it in your spare time with the power of virtually all human knowledge in your pocket.