get up and better yourself and forget about the people that pushed you down... Just remember this saying "No matter how you feel, get up, dress up, show up, and NEVER give up" show everyone that doubts you that they are wrong.
I really like this quote, but I don't think this would truly take just one day. You'll have to fight for much longer, survive for much longer, persevere for much longer. And the truth is some of us won't get there. The world is too unforgiving for that. However, I do believe that even if we never reach a position where we can stop caring, friends and family will be the comfort you need.