Lent

I'm not catholic, but I have friends who are...and, I have a Virgin Mary medallion from some chapel in France. It should have been something I thought of earlier, but I need to think about what I want to give up for Lent. I never try very hard, or succeed, but I thought this year it might be good to be mindful of my life for a month or so. I don't know maybe the near death experience is just getting to me. Suggestions?