Your philosophy is spot on, no point worrying about things that may not happen.
Pat has given you good advice, the only thing I can add, is definitely take one day at a time, and be kind to yourself.
I have had this for many years now, and yes, I do use a power chair, but that is only a tool to make my life easier, and my progression has been a slow gradual thing, and some people even plateau, so please don’t think this has to be the worst type, it is just a label, we are all different.
Welcome to our little ‘gang’, lovely friendly people here, and together we have a wealth of knowledge.
Look forward to seeing you here again, and any questions ask away, I am sure someone will be able to answer.