wash your face, then pat dry. apply your toner to a cotton ball or pad, swipe over the entire face. you don't need a lot, just enough to smooth over your face. follow with serum and moisturizer. no need to wait between steps.
You can always call or go back to your local counter, and have them walk you through how to use the products they sold you

you could use either, but absolutely use both together! Use Genifique first then Visionaire.

it depends on what your signs of aging are. Renergie Lift Volumetry helps to lift and firm and reduce the appearance of lines and wrinkles.
If you want to restore a more youthful quality to your skin, start with genifique, and then the High Resolution line which is great for fine lines, and smoothing the skin (both my 20 year old sister and my 30 year old self use it), it also helps with the elasticity of the skin, so it will help with your firming issues. I can't imagine that at 19 even if you look older, that you need really need a lot of lifting and firming yet. RLV will most likely be too much, I'd start with High Resolution and if you still need more, upgrade to RLV after. If after using Genifique and High Resolution for a bit you find you want more help with texture- add visionaire to your routine.

yes. You can use either or, for best results - Both. When using both, there are two options: a) Use Genifique in the am followed by your day cream and Visionaire at night followed with your night cream. b) Use Genifique followed by Visionaire and then Moisturizer Morning and Night.