Sometimes it is not easy to just push out the negative as it is, as you have mentioned, this is a mind battle ground. The best way is to (like you said) choose the positive side with baby steps, look around you, and you will know that there's so much things you can give thanks for, because most of the time, the little choices of looking at the good that you have / obtained / posses actually outweighs the bad. When things are less likely to self-consume / self-occupied, it is actually more bearable.