Bonsai should really be outside most of the time.
Also, I would get some practice on caring for hardier plants before getting a bonsai. There are tons of easy to care for plants, and once you feel comfortable caring for them and learn to “read” their signals, you’ll be in a better position to care for a bonsai. I wouldn’t say (all/most) bonsai are an “advanced” plant, but they tend to be “moderate”. I would practice with plants that are easy.