Since this is your first foray into skincare, I recommend you booking a skincare consultation at a counter such as Lancôme, Clinique, Vichy, Clarins etc. they will be able to determine your skin's pH and ascertain what your skincare needs are by your questions. This is your safest and least expensive bet, rather than going about it yourself through trial & error of trying various products. After your consult, you'll have a much better idea of what skin type you are and what products you can choose based on your budget.