Activity for Baiylee

So my bestfriend is getting married September of 2018 and I am getting married the following July. We are both in each other's weddings as well. I've started a little planning here and there while she has started a lot. But to her it's a competition...

So I'm getting married July of 2019, and I was wondering when would an appropriate time to start planning would be? The wedding is 2 years away but I want to start now! I need help! lol