No. Your life is not over at all. I was diagnosed less than a month ago with PPMS (primary-progressive MS). It is known to be rare and serious type of MS.
I was quite broke for first weeks. I thought I was going to paralyze fast but still I am doing fine. I have learnt to be grateful every single day I am healthy. As the first writer said it most likely takes a year to process the diagnose but I personally feel way better after a month.
It helped me a lot to openly discuss my first experiences and symptoms with someone with MS privately. Feel free to ask or discuss about MS because it does relief your mind after the shock.