New to Forum

I am new to the Forum because I was recently diagnosed with Fibromyalgia and CFS. I was wondering if anyone had any tips on what they did/how they coped when they were first diagnosed with this illness. I am a very active person so these last months have been very depressing. I was about to start training for a marathon when I woke up one day with constant pain all over. Needless to say, I have not exercised since July. I am looking for any advice, what people did to adjust to their new way of life. Thank you.