When I was 18 I resolved that I wanted to explore the field and would not date a guy for more than 3 months. I saw my friends getting into year or two or three relationships and then splitting up and thought what a waste. Turns out the first guy I started dating I ended up marrying. And the main thing that convinced me to stick with him was a random comment from a friend about how well he treated me.
So from my limited experience, I would recommend that you treat the ladies super well and they will respond. I am not talking about showering her with gifts, but just things like paying attention to her at parties and including her when you are hanging out with your friends, listening to her and sharing with her and making her feel special. And especially being on your very best manners whenever you are around her friends and family, because you never know who will put in a good word for you.
