Welcome! Glad you joined. Are you using API test kits? They are notorious for false readings.
With Fritz TurboStart and live sand, you are cycled. Likely your going from ammonia into nitrite into nitrate too fast to catch any nitrite. Likely your sand cloud settled about 2 days ago.
You can pick your first fish to add. Patience is the magic in this hobby, so go slow.
This might help you find people local to you in Seattle (pretty active hobbyists up near you!) Might also find them on FaceBook in groups:
https://www.reef2reef.com/forums/local-reef-club-discussion.516/
This is a good reference book type online article I still review:
https://www.reef2reef.com/ams/the-supreme-guide-to-setting-up-a-saltwater-reef-aquarium.84/
This is info and links they gave me when I was new on starting Build Thread Badge:
One fun way to learn from others and keep a record of your reef aquarium is to create your very own build thread! A build thread is just a thread that tells us about your aquarium and might include photos. You can create your build thread in one of these forums.
MEMBER'S AQUARIUMS
Once you have created a build thread then you can get your VERY FIRST USER BADGE! YAY! It's easy to do and I have created a thread that tells you how to do it here:
BUILD THREAD BADGE