Hello, Daisy!
I can understand how you feel. Sometimes I feel the mundane things in life consume me or that just life itself isn't exciting. I get "blah" and feel like I don't "feel" anything or sometimes feel everything at once.
One thing I've tried, as a distraction, is to hold ice cubes in my hand. I know that sounds corny, but it really works. I also try to find an outlet for myself...drawing, painting, writing... something creative helps or something with physical exertion --biking, walking, swimming. If you are feeling angry---blowing up balloons and popping them help. I learned all this in therapy.
Either way, try to remember what made you happy BEFORE the events that are currently occurring....even childhood stuff. I LOVED finger painting as a child. I also liked watching Garfield and Friends. I know both sound corny too, but watching one cartoon and doing a little finger painting actually brought back good feelings from those times and helped me to feel "whole" again. It is a matter of what YOU like to do.
I am sorry if all this sounds cliche, but I have been there. I admire your determination for getting off Methadone and also reaching out to the community here.
I hope this helps.
HUGS!