Has life's experiences dampened your spirit?

As a teen I had so much love and life to give to others, but as of late, life has thrown some very difficult experiences my way that have caused me to become fearful, cautious, and have cooled my excitement and vigor for others. I cannot stand it, and am trying to fight against it and find the raw me. Anyone have a similar experience or advice? I will not stand for rude and thoughtless comments, so do not even think about it. I will report you.