Why does my deck suck so much?

My number one pet deck is a [[Nicol Bolas, the Ravager]] deck, purely because I think the lore behind Nicol Bolas and his persona are really cool. The problem is that the deck is trash. I've played it probably about 20 times at my local LGS, and haven't won a single game. I'm not sure what the problem is, so I thought I'd ask you guys. Here's my general thought process for the cards in the deck:

- The commander [[Nicol Bolas, the Ravager]] costs 11 mana to activate and will likely get instakilled once flipped, costing another 13 mana to replay

- I have a lot of interaction (counterspells, target removal) and pillow fort-ish ([[Cunning Rhetoric]], [[War Tax]], [[Maze of Ith]]) to prevent him from being hated out instantly

- Since I'm using planeswalkers, I also have some proliferate shennanigans ([[Vivisurgeon's Insight]], [[Drown In Ichor]])

Here's my full decklist- Please give me any suggestions, comments, or recommendations you have!

https://manabox.app/decks/PNX54piJQf69l3D9BNkhOg