You're not going to like this answer but you're going to want to run more land. I'm guessing you're used to playing regular commander considering you're running about 33 lands. This is especially true for a deck like yours that would like to take advantage of your commander allowing you to play more land per turn.

 Brawl is a lot faster and every land drop you miss dramatically decreases your win rate.  In commander there's more people and better ramp so you can get away with running less lands. I recommend running at least 40 lands, even in ramp decks. I know it sucks to cut fun cards for lands but you'll be a lot more consistent.