Please help me out here? Please?

Hi. I am a really difficult situation right now and I would appreciate any help that anyone can give me. I have been diagnosed with fibromyalgia and I suffer from huge amounts of pain everyday. I am young and work and go to school full time. Getting up and pushing myself through each day is a major struggle...but day after day I force myself to get up and fight through the pain...I don't want sympathy from anyone..I just don't know how to cope. I had a little help from my Mom...she went to one appointment with me but last time I needed her she wasn't there for me and chose other activities over me and supporting me. She is willing now to help me and support me again but I am hurt from last time and I don't want her involved and I don't need her anymore. Just so everyone is clear, my mom wasn't there for me at all when I needed her..she pushed me away and now she wants to be involved..but it is way too late for that. I have my 2 best friends that I can count on and my boyfriend but still it is hard. I am just looking for suggestions as to how to make life easier and how do I cope with a situation like this, where every single day is a huge struggle for me? I feel so alone, I am so young and no one understands what it is like and where I am coming from. I am so angry and frustrated, I just don't know what to do...thank you for your time