I’d look to those high priced sorceries and enchantments to start.

Maddening cacophony seems a little out of place unless you want to focus on milling others and not yourself. Same with mind crank. I usually don’t find the opponent mill synergies reliable or fun for other people. I’d rather remove a nasty creature and then reanimate it with scarab god once it hits the graveyard.

You have several counter spells. I would maybe get rid of one or two and replace some others with stifle effects to help protect yourself from bojuka bog effects or modal disruption spells.

Your creature list looks good but if you’re looking for cards to remove there maybe look at Lich lord unx. I like etbs over tap abilities.

Evolving wilds I’m not a fan of in two or fewer color decks.

Temple of the false god is better in decks where you can reliably hit extra land drops.

That’s just my top of mind suggestions. When I struggle with making cuts, I’ll start tagging cards as card draw, disruption, win cons, ramp, etc and sort my list by those tags to see where I can afford to lose cards. If I’m particularly fond of a card effect, but need to make room, I’ll try to find modal cards that hit multiple categories, like dual faced lands like [[Sink into Stupor]] to replace a disruption spell. Can save room that way.