So tonight was my first attempt at actively remembering a dream, something i’m horrible at doing normally. As I was falling asleep, I thought repeatedly ‘When I wake up, I will remember my dream and write it in my dream journal’. About an hour and a half after i fell asleep, i woke up, and wrote a full page of random words about my dream, then was able to piece together about 90% of it. Is it normal for it to work this well on a first try, or did I just get lucky? Or is that not good?
hello and welcome to the forum 
You did well
and it’s quite common for dream recall to suddenly improve just with the intent and motivation to remember the dreams.
If you wish you can create a dream journal in our dream journal forum. I could even move this topic into the DJ forum so you can add your dreams to it and make it your dream journal