Hello! Welcome to my first terraria guide! This guide will help you defeat the wall of flesh!
Comment if it worked! Make sure to like this if it helped! Now onto the tutorial, Scroll down.

This is the first thing you will need, But to me. it's recommended.

You can use: Ironskin potion, rage/wrath potion, swiftness potion, hunter potion (optional)
Archery Potion (optional) Pumpkin Pie (once again, OPTIONAL)
The buffs you can use are Honey and Heart lantern, along with the campfire regen buff and "Happy", which is a buff from sunflowers and decreases mob spawns.

(Small or Medium worlds,) If you are on a large world, Make it around half or 3 quarters the size of the world, I used Large, So i just made it 3 quarters the size of the world. If you want, build a second or possible third platform made of wood platforms (Or any platform like Boreal Wood, Shadewood, Marble, etc.) I didn't. I don't know why i didn't. You need a grappling hook if you can't jump to the next platform.

This is HIGHLY recommended. You can use a Minishark and 1250 Musket balls, 70-120 Beenades (From Queen Bee, Beeswax + Grenades), You'll also want either
A Night's Edge, a Molten Fury, or a Water Bolt, (And a Ballista/Lightning Aura/Explosive Trap/Flameburst Rod,) (1.3.4), or all of them. Yeah this is a bit small. (Image used is not mine and found on Google.)

I used Molten Armor (melee) You can use it too, But you can also use Necro Armor (ranged)
Bee Armor (summoner) or Jungle Armor (magic), Moving on to accessories (Try and get Menacing or Warding.) Warding Frog leg, Menacing Rocket boots, Menacing Sandstorm/Blizzard in a Bottle.
Warding Hermes/Sailfish/Lightning/Spectre Boots, and finally, Warding Band of Regeneration.
[EDIT] You need Spectre Boots to make Lightning Boots.

To make the Lightning Boots (accessory), You need Spectre boots, an Anklet of the Wind, and an Aglet, (made at a Tinkerer's Workshop) Tinkerer's Workshop is sold for 5 gold. Spectre boots can be made with Hermes Boots and Rocket Boots at a Tinkerer's Workshop.

For this part, You need a Guide Voodoo Doll, After all you need a Guide Voodoo Doll to summon the Wall of flesh, If you don't have one, They have a 100% chance to drop from Voodoo Demons in the Underworld. Make sure you have a Grappling Hook. You can grapple to the next platform.

You can keep speed from the Wall of flesh thanks to your Hermes/Lightning/Sailfish/Spectre Boots.
If you are at low health, Make sure you have a Regeneration potion, As they increase your life regeneration. If you want to do it. use the Night's Edge on the Wall of Flesh. But it's your decision.
As you need to get close-up to the Wall of Flesh. When you are at low health, Switch to your ranged/magic weapons. You can take over from here, Good luck! Comment if this didn't work.