Forum:Help me with my Infernity Deck

I took this deck to locals, and got 3rd! Didn't have barrier or Plaguespreader at the time. tell me what to fix and I will look into it. Also, I finally have the money for 2 more barriers if you think I should add that, but i probobly wont have enough for many other cards. I was thinking of swapping out one break for a barrier, and putting in the other to bring my main deck total to 42.

Main Deck: 41

Monsters: 15

3x Infernity necromancer 3x Infernity Archfiend 1x Infernity Beetle 2x Infernity Mirage 1x Infernity Avenger 2x Stygian Street patrol 1x Dark Grepher 1x Armageddon Knight 1x Plaguespreader Zombie

Spells: 10

1x Infernity Launcher 1x Dark hole 1x Giant Trunade 2x Mystical Space Typhoon 1x Foolish Burial 1x Monster Reborn 1x Book of Moon 1x Reinforcement of the Army 1x One For One

Traps: 16

3x Infernity Inferno 1x Infernity Barrier 2x Infernity Break 2x Bottomless Trap Hole 2x Trap Stun 1x Torrential Tribute 1x Call of the Haunted 1x Mirror Force 2x Solemn Warning 1x Solemn Judgment

Extra Deck: 15

2x Armory arm 1x Stygian Street Patrol 1x Flamvell Uruquizas 1x Gaia Knight, The Force Of Earth 1x Chimeratech Fortress Dragon 1x Colossal Fighter 1x Dark End Dragon 1x Stardust Dragon 3x Hundred-Eyes Dragon 1x Infernity Doom Dragon 2x Mist Wurm

Side Deck:

1x Super Nimble Mega-Hamster 3x Ryko, Lightsworn Hunter 2x Cyber Dragon 1x Effect Veiler 1x Nobleman of Crossout 2x Starlight Road 2x Imperial Iron Wall 2x Dust Tornado 1x Light Imprisoning Mirror

I would also like to try and work in two more beetles.