Stop doing the most for people that can only seem to want to do the least for you. Ungrateful people who cannot reciprocate your support, don't deserve you at all. Why be the only one giving 110%, meanwhile they can barely manage 20%? Give 110% to those who know how to reciprocate in the correct manner. Your happiness, time, and energy are all too expensive to be constantly spending on people who are not deserving. Ungrateful people will only seek to devour everything you give to them and they are never sated. Stop feeding the ungrateful and allowing them to suck you dry.