Take a few photos of what's on your bathroom counter and you'll get a plan for the whole week. It tells you what to put on, in what order, and which nights to use the stronger stuff. You don't have to buy anything new for this to work.
First time setup
What's on your shelf?
Everything you actually put on your face, including the tub you bought once and haven't touched since.
Your products
Take photos of the labels. You can get a few products in one shot as long as the names are still readable.
or
Your skin (optional)
A clean face with no makeup, standing near a window if you can. It helps tune the plan to what your skin is doing right now, but you can skip it and everything still works.
Your goal
Pick whatever sounds like you. More than one is fine, and you can skip this if you just want a solid everyday routine.
Anything to work around? (optional)
Sensitive skin, pregnancy or nursing, an allergy, anything a doctor has told you to stay away from.