Taking life for granted

Sometimes I feel as if I take certain things for granted that I have. I have so many benefits in life. I have an advantage to so much yet sometimes I fail to understand it and I take it for granted. So many people in life do not have the advantage to go to school yet I do so I'm so lucky but end up slacking sometimes just because if fail to understand how important it is in my life. I have a bad habit of wasting food. I don't try to get large portions but sometimes I just can't help it and it ends up that I throw it out. Why do I do that when so many people starve. It's not that it'll help if I finish everything on my plate but it will certainly make me feel better consciously. Life gives us so many opportunities and I think we should take advantage of as many as possible and make something out of our lives.