Tatyova, Benthic Druid Deck Advice

Hi! I've just gotten back into MTG after a long time away, and I've been playing around on MTG Arena. I've been pretty happy with the Standard deck I built, and decided to building my first Commander deck for Brawl. My results have not been very good with this deck, and I was wondering if anyone would be willing to take a look at my decklist and tell me if there's anything seriously wrong. It's possible that it's just a skill issue because I'm really not used to the flow of Commander decks yet, but if anyone could help me determine whether or not the deck itself needs adjustments, I'd really appreciate it.

https://www.mtggoldfish.com/deck/7597316#arena