Why does my LP change so often?

Yugioh LP deck help? What should I change. (tournament ready Pls)?

• 2 malevolent nuzzler 1 Island turtle 1 Gemini elf 1 Magical hat 1 Waboku 1 Metalmorph 1 Dark Core 1 Dark blade 1 spellbndin circle 1 Ominus fortunetellin 1 scapegoat 1 wicked-breaking flamberge baou 1 solemn wishes 1 The calculator 1 luster dragon 1 Fire princess 1 Magic jammer 1 Maneater bug 3 gagagigo 1 fissure 1 deal of phantom 1 neo aqua madoor 1 aqua madoor 1 zolga 1 neo bug 1 axe of despair 1 misfortune 1 kuriboh 1 Cursd seal of frbiddn spell 1 Gravity bind 1 red medicine 1 call of the haunted 1 a hero emerges 1 change of heart 1 burning land 1 skull mark ladybug 1 secret barrel 1 altar for tribute 1 gogiga gagaio 1 wall of revealing light 1 numinous healer 1 reload 1 old vindictive magician 1 mucus yolk 1 hysteric fairy 1 blast asmodian 1 sword of soul eater 1 poision of old man 1 gray wing 1 injection fairy lily 1 obnoxious celtic guardian 1 dark ruler of hades 1 morhping jar 2 2 B.e.w.d 1 Spear Dragon 1 des counterblow 1 gearfried the iron night 1 teva 1 cemetery bomb

• Answer:

  if you are wanting to build a life point deck then you are gonna need cards that can do effect damage to your opponents life points. here is my old deck list monsters:11 1x spirit reaper 1x guardian angel joan 3x mystic tomato 2x stealth bird 1x sangan 3x the agent of judgment-saturn spells:16 3x hinotoma 3x poison of the old man 1x meteor of destruction 3x the sanctuary in the sky 1x heavy storm 1x mystical space typhoon 1x magical mallet 3x upstart goblin traps:13 3x gift cards 2x bad reaction to somachi 2x eye of truth 1x gravity bind 1x spirit barrier 1x astral barrier 1x judgment of anubis 1x magic cylinder