Yeah, what do you need to make per hour and or per vehicle to cover the cost of everything involved and make you happy to do what you do for a living? If people can't afford to pay what you need that don't perform services that they can't afford. What I mean is if people can't afford paint correction then perform a one step using an AIO or your own version of such. You have to give a market what it wants and can handle price-wise. If you and the market can't find a meeting ground then you need to provide a different service, find a different line of work, and or find a different market that can support you. Most people can afford things they just don't budget for them or don't want to pay for them.
This is the absolute truth.
Look at your competition. How busy are they? What do they charge? Where's your skill level compared to theirs?
Do you have different levels/packages?
People like choices. Have something for every budget. Entry-level package with a basic exterior wash, mid-level, so on and so on. Offer a 3-step Full Paint Correction and offer to do 'test spots'. That always gets em.
NOTHING will beat on the job training. Once you've handled almost every situation thrown at you, and can come up with a plan of attack in your mind as you're looking at the vehicle, you're on your way.
As for products, don't think the average joe is going to have nay idea regarding the boutique items so many of us get all googly eyed over. For MOST, interiors are what's important.
Look for products you can cross-utilize. For example, my Meg's APC+ can be used on everything from engine bays, wheels, tires, wheel wells, upholstery, vinyl, carpet, etc.
It's absolutely the ONE product I couldn't live without.
Need to clean the crud off a steering wheel,....grab a toothbrush and Stoner's Invisible Glass and a mf towel.
I could ramble on, but you understand.
Good luck.