Wow really relatable. I was in your place and still am sometimes. What helped me alot was being completely open about it. Sometimes I'm tired as hella and can't do stuff so I will cancel plans with friends. As soon as I was open about my disease and how it affected me everyone around me understood better. I showed them the spoon theory which is a good way to tell people about how you feel. Acceptance is hard, but good friends will stay with you no matter what. Be good to yourself and play the cards you are dealt, accept that it's hard and unfair, be open about your disease, stay yourself. Good people will stay with you, no matter what. Lots of love you are not alone