Forum:My only cards

I am a NOOB at this card game now. Last time i played i was 8 years old. Now yugioh is back and popular at my highschool and these kids challenged me.hahaha. I gave my deck to my little cousin a few years ago and he let me borrow it to beat these kids. I need some suggestions to change my deck. yeah, i know it sucks. Here's the deck

34 Monsters: Kuriboh, 4-Starred Ladybug of Doom, andro sphynx, The dragon dwelling in the cave, Darkfire soldier # 2, Neo Bug, Shadowslayer, Kaiser Sea Horse, Sphynx Teleia, Des Koala, Luster Dragon, Breaker the Magical Warrior, Pitch Black Warwolf, Hiro's SHadow Scout, Marauding Captain, Warrior Dai Grepher, Brain Jacker, Cyber Jar, Nimble Momonga, Baby Dragon, Ninja Grandmaster Sasuke, Giant Germ, Spear Cretin, Forgiving Maiden,Spear Dragon, Man Eater Bug, Obnoxious Celtic Guard, Shadow Ghoul, Sasuke Samurai, Drillago, Black Luster Soldier Envoy of the Beggining, Chaos Emperor Dragon Envoy of the end, Maha Vailo, Theinen the Great Sphynx.

10 Trap Cards: Magic Drain, Bad Reaction to Simochi, The Eye of Truth, Mirro Wall, Michizure, Magic Cylinder, Jar of Greed, Skull Invitation, Two Pronged Attack, Return from the different dimension

15 magic cards: Upstart goblin x 2, Pot of Greed, Primal Seed, Rain of Mercy, Offerings to the doomed, Sword of Deep-Seated, The Warrior Returning Alive,Swords of Concealing Light, Monster Reborn,Gravekeeper's servant, Sogen, Dark Hole, Soul Release, Change of Heart.

We do not use tournament rules, and the kids im supposed to beat only use structure decks. So can anyone help me out and give me suggestions?