Realms Is Super Broken

Recently, I've started my free trial (and planned on becoming a subscriber) to Realms when I found that the world I was planning on uploading (fairly small, around 7mb) a world to play as a Realm with my friends when I keep getting an error message and it does not upload, and afterwards, I cannot reset the world on that realm. This is really disappointing, considering I wanted this to work, because this means I need to create an entirely new world and restart from scratch all my hard work. This is concerning and I'm rethnking my subscription. Thanks guys, you're doing great.