I'm 29 and I don't know what I'm doing re: skin care. I don't feel like a real adult 
I've tried a bunch of different things over the years, but never really stuck to a routine. I want to establish a simple but effective routine by the time I turn 30. My goal is to not look like a old boot. I'd love to have skin that looked nice without foundation, mine is dull and flawed.
I get what seem to be hormonal spots mainly on my chin in the run up to my period. My T-zone is a bit oily, but elsewhere is quite dry.
My current approach is superdrug vitamin E day and night cream, la Roche possay cleansing gel wash in the morning, and micellar water to remove makeup at night. Use a vitamin C serum most days (Super Facialist Vitamin C+ Glow Boost Skin serum ) & No.7 primer under foundation.
Any suggestions for a good routine and products? Can spend around £100 on a "fresh start" for my face.