I think skincare it utterly hit and miss. As with most things in life, what suits one person doesn't suit another. You have to try lots of different things and use what works for you.
Lots of the concession stands in department stores will give away samples for you to try. Lots of websites of skin care manufacturers will send you samples too. Try lots, decide for yourself. Best to have something with sunscreen in for march to October.
Spots might be hormonal, stress or diet related, rather than skin care regime. Having said that, on the recommendation of a friend I bought some origins face cleanser and my skin has been clear ever since. Its lovely stuff.
As for looking younger, there are products that smooth the lines, taughten the skin etc but its a faff about with eye cream, serums etc. Nice for the odd nice out, but not for pre-school run. You are of an age where you are just going to get lines. Just move so fast no-one will notice! 