Let me clear your concepts
Microfiber towels are used to buff of wax and cleaning of car's body as they are soft as compared to locally available clothes so there are less chances of swiril marks as compared to localy available ones.
Washmits are used for washing car
You need to wear that washmit dip in the soapy water (shampoo) and then slightly rub it on cars body in this way car will remain swiril free while washing. Although there are many methods od washing like 2 bucket method etc etc but let your car come first then you shall watch videos on youtube.
Waxes: im sure you knows about waxing and polishing and compounding of car
But let me clear some doubts about it.
Polish is usually used on old cars body for removing minor imperfections like minor swirils tiny scratches and bring back lost shine of the paint
Polishes are abbrasive means they cut layer of paint
Compund: same as polishes but strong and highly abbrasive these are used in some serious conditions
Eg: while your car gets a scratch layers of swirils and imperfections.
Waxes are used to protect the paint of car these are highly safe and good to use once or twice a month depending on quality of waxes and the usage of car
Waxes gives depth gloss and shine to the paint they add natural oils in paint so your car's paint will be safe and shiny all the time.
Thats all i think these main things are important for you although there are many more products and things in detailing world.
You should buy megiuars car kit its affordable and have all The essential products like wax shampoo tyre jel washmit mf towels water magnet etc all in 4k range
Happy detailing