You do not say what format you intend to be developing. For 35mm and 2 1/4 stainless steel or plastic so-called daylight tanks are the norm. With them, you need total--and we mean total--darkness only when loading the film on to the reels and placing them in the tanks. After that step, all else may be done in room light. Some facile people don't even have a darkroom, just a changing bag for the loading step.
Use one developer for the films mentioned. Your best bet is D76/Id11 as a starter. Keep it simple.
You can put the tank in a sink of water at the proper temperature. It will hold the temp long enough for the development step to be completed.
You need a tank or tanks, a good thermometer, two bottles for chemistry--developer and fixer--and some clips for hanging your developed film up to dry. Do everything in the bathroom. It is made for use of water and is probably the most dustfree place in the household.
The processes are simple and straightforward, and the quality of results with proper technique shall be as good or better than what you have been getting from labs. There is also great pride to be had from seeing your negatives and feeling "I did that myself."
John, Mount Vernon, Virginia USA