Skin cancer question?

My mom and uncle just had melignant moles removed from their body (found really early). But I'm a little concerned about me getting it. I have 50+ moles (many of which my dermotologist said were 'fried egg' shaped), my shoulders have sun damage, and I'm blonde and 25 yrs old. So I have 2 questions. I love being outside, so if I'm in the sun a lot but never get burnt, is this still bad? I make sure to wear sunscreen too. Is it better to just stay out of the sun altogether? Also, will putting on lotion after showers make my skin healthier and thus less susceptible to contracting melanoma? Thanks!!