Hi @Sydney - first of all, wishing you all the best and go you! You've come so far already. Through surgery and chemo - before you know it, you'll see the light at the end of the radiation tunnel.
As the others have said, recurrence is always something that's at the back of our minds. I find that thinking of the future in 'chunks' can really help. Because I work in a school, my life revolves around school terms so I think one term ahead and then when I look back it's like 'wow'! It's already been 18 months since my diagnosis - where did that time go?
Don't be surprised that you might feel a bit more 'lost' when active treatment finishes. That's when you're in a sort of limbo. As time goes on though, it's a little easier to adjust to the new normal and enjoy each day as it comes.
Lots of hugs xxxx