Developing black-and-white at home
You need less than you think: a changing bag, a daylight tank with two reels, a thermometer, measuring jugs, and three chemicals: developer, stop (or just water) and fixer.
Load the film in the bag, keep everything at 20 °C, follow the time chart for your film and developer, and agitate gently. Rinse well, add a drop of wetting agent, and hang the strip somewhere dust-free.
The first roll will have mistakes. That is part of the fun.