Hi. Welcome to StyleForum. I would ignore the color wheel as it can sometimes limit your imagination. It is not a horrible way to learn but it is fairly regimented (style, like language, is in my opinion best learned through immersion and exposure). You'll find a wealth of threads on matching shirts and ties, matching odd jackets and trousers, and what types of shirts and ties go with what suit colors. There is probably some color theory involved here, but I've never used a color wheel to pick out an outfit and I've generally gotten compliments on the outfits I put together. My goal was always to be able to look at different pieces (trouser, jacket, shirt, tie, etc.) and figure out if it would look good on me. Immerse yourself in SF and try out different combinations yourself (worst case is you experiment and it doesn't work, life goes on) via trial and error. Don't be afraid to ask for opinions and thoughts if you have an idea and am not sure how it would work.
The "What Are You Wearing Right Now" types of threads are a great place to look at different combinations and see what you like and don't like. Fair warning, there are some bad outfits in there, but there are also a lot of opportunities to learn from senior members who do pretty well in the style department.