Permissionsex help ... :/

I've been trying to get this right for two days. Please, dear god, what am I doing wrong?

everytime I log in, even though verifyOP logs me in as master operator, AND even though I am the server owner, duh, I can't even use simple commands like /help

so please, /help me...

groups:
Player:
default: true
permissions:
- essentials.spawn
- essentials.rules
- essentials.motd
- essentials.list
- essentials.helpop
- essentials.help
- essentials.afk
- essentials.back
- essentials.back.ondeath
- essentials.balance
- essentials.chat.color
- essentials.chat.shout
- essentials.chat.question
- essentials.compass
- essentials.home
- essentials.delhome
- essentials.ignore
- essentials.mail
- essentials.mail.send
- essentials.msg
- essentials.pay
- essentials.sell
- essentials.sethome
- essentials.signs.use.*
- essentials.signs.create.trade
- essentials.signs.break.trade
- essentials.suicide
- essentials.time
- essentials.tpa
- essentials.tpaccept
- essentials.tpahere
- essentials.tpdeny
- essentials.worth
- modifyworld.*
- multiverse.access.world
- multiverse.access.Skyworld
- multiverse.access.world_nether
- multiverse.access.world.the_end
- multiverse.core.access.*
- multiverse.portal.access.*
- multiverse.core.tp.self
- multiverse.signportal.access.*
- griefprevention.lava
- griefprevention.claims
- modifyworld.blocks.interact.wallsign
worlds:
Skyworld:
permissions:
- usb.island.create
- usb.island.info
- usb.island.topten
- usb.party.create
- usb.party.kick
- usb.party.join
- usb.party.makeleader
prefix: '§2[Player] §2'
options:
build: true
rank: '1000'
moderator:
default: false
permissions:
- essentials.command.invsee
- essentials.command.vanish
- essentials.command.tptoggle
- essentials.command.tpo
- essentials.command.tp
- essentials.command.warp
- essentials.command.togglejail
- essentials.command.top
- essentials.command.invsee
- essentials.command.gc
- essentials.command.mute
- essentials.command.kick
- essentials.command.whois
- essentials.command.realname
- essentials.command.me
- usb.mod.party
- usb.mod.goto
- usb.mod.topten
- multiverse.signportal.validate
inheritance:
- Player
prefix: '§5[Mod] §5'
options:
build: true
rank: '500'
admin:
default: false
permissions:
- essentials.command.setjail
- essentials.command.jail.exempt
- essentials.command.weather
- essentials.command.jump
- essentials.command.world
- essentials.command.socialspy
- essentials.command.fireball
- essentials.command.clearinventory
- essentials.command.burn
- essentials.command.nick
- essentials.command.gamemode
- essentials.command.repair
- essentials.command.enchant
- usb.extra.hunger
- worldedit.wand.*
inheritance:
- moderator
prefix: '§1[Admin] §1'
options:
build: true
rank: '200'
Op:
default: false
permissions:
- essentials.backup
- essentials.essentials
- essentials.setspawn
- essentials.reloadall
- essentials.command.kickall
- essentials.command.sudo
- essentials.command.unban
- essentials.command.unbanip
- essentials.command.setwarp
- essentials.command.delwarp
- essentials.command.jail.allow.warp
- essentials.command.ban
- essentials.command.banip
- essentials.command.setworth
- essentials.command.tree
- essentials.command.broadcast
- essentials.command.powertool
- essentials.command.powertooltoggle
- permissions.manage.users
- permissions.manage.users.permissions
- permissions.manage.users.permissions.timed
- worldedit.*
- usb.admin.reload
- usb.admin.remove
- usb.admin.delete
- usb.admin.register
- usb.admin.purge
- multiverse.access.*
- griefprevention.adminclaims
- griefprevention.deleteclaims
- griefprevention.transferclaims
inheritance:
- admin
prefix: '§e[God] §e'
options:
build: true
rank: '100'
Owner:
default: false
permissions:
- '*'
- essentials.*
- usb.*
- dynmap.*
- autosave.*
- multiverse.*
- starterkit.*
- timber.*
- vault.*
- opverify.*
- creativemanager.*
- coreprotect.*
- cookiemonster.*
- worldedit.*
- griefprevention.admin.*
- griefprevention.command.*
- essentials.command.*
- permissions.*
- modifyworld.*
- bukkit.*
inheritance:
- Op
prefix: '§4[Titan] §4'
options:
build: true
rank: '1'
users:
Nic_Nitro:
group:
- Owner
permissions:
- '*'
- bukkit.*
prefix: '§l§6[The Almighty] '