Rejection's not easy to get used to

Well I got another rejection letter today. It's not the first rejection letter I have gotten. But they are getting harder to accept mainly I think because it's for a cause that I am so passionate about because it doesn't hit any closer to home when it's yourself suffering from the disease. I have learnt to live through others for the majority of my life because if I couldn't do something when I was younger, I was foolish enough to try and do sometimes. I have been content to sit back and watch as my friends and family did some stuff that I was unable to do. I was always encouraged to try stuff no matter how far out of my range of abilities it was because the only way to find out whether or not I could do something unless I tried and failed.