The battle of my will to push my limits

I met with a pt that told my the facts about my condition. I was crushed.. Why? Was I crushed now at this stage of my life? I am 43 and have had this condition my whole life and every day is a battle. So my question is why at this point did it crush me. I had a tough tri season this year, I had lots of personal issues that interfered with my training, my son had surgery, my mom got sick , I ended up with a sprained ankle. So to try to get inspired for next season I went to this pt that specializes in the condition of clubfoot hoping he could tell me what I need to do to stop those people I passed on the swim the bike ..pass me as I walk the run. He told me the bad news. I will never run fast my body is not built for it. I apparently don't use my butt to propel me forward I only use my hips and calf (not good)... For all you fellow clubfoot triathletes you know that pain when you get off the bike to run.... Oooof it kills!! So I guess with my bad season and my dreams more a reality it crushed me. I have been trying to read blogs, books to gain some inspiration... But I am still feeling the pain of wanting to give up . I get to the run and just give in to the pain and to the reality I am different I can't run... That bloody brain won't stop---you can't run what are you doing, why do you do this? You should just walk for awhile, you may be last this time... So I sit writing a blog to who? Anyone out there? Will they find me and help me get my mojo back? Sad ...crushed... Reality sucks! Help!