need your suggestion to improve me

one thing i know that...wat is good for others skin may be not good for mine and so all the time we personally should try the product and find that which one is good for our skin, but i am bit scared if any wrong product will harm my skin....i cant afford dermatologist , as i am in europe i have used nivea but i am not so satisfied with their products, they make me fell sticky for while i was on neutrogena, and i think that was fine.....but still in search of some miracle product, as like the female tendency i used johnson baby product too but, they wasnt good and i decided i will never use them on my baby(or may be here they dont sell the original ones) can i find mary kay products here(Latvia)