It sounds like so far, you aren't experiencing too much impairment, which is great! Some people I've met online don't get too bad. Others of us, like myself, are in bed a lot and can't work anymore. Like others said, there is no way to predict. I think judging by where you are now, you are in good shape and hopefully things will stay that way.
I was already really sick when I got diagnosed. I got sicker from there. Even so, I can still find a lot to be grateful for. In this age of the internet, we can have a decent quality of life even being bedridden. It can be a daily struggle to be inspired to be grateful, but I have the best friends I've ever had in my life since I became ill. I'm also closer to God and have a new, wonderful church family. I learned what is important and what isn't. I went from being a workaholic to someone who is at a standstill, but I'm much more present for my family.