I come to you my YT sisters for great needed help.

Last night, I went to You Tube and started checking make up tutorials, which made me realized, I
urgently need to empty my make up drawer and re stock. My make up, is who knows how old,any brand on sale at the time, dry mascara, I found 3 same color lip liners!For some reason, all my lipsticks are different shades of brown..
The consiller (s/p) I use, I've notice that gets into my pores, making them more noticeable. I get the raccoon look with the white stuff to cover my under eye bags. I've been doing everything wrong, and at 48, I need all the help I can get..
-What's the one product you can't live without?
-Ant tips and tricks on application
-Brush vs Sponge
All suggestions are welcome!