1: Create new profile. When you get to S.T.A.T.S. do the following.
Strength: 6
Perception: 6
Endurance: 5
Charisma: 5
Intelligence: 6
Agility: 6
Luck: 6
You WILL be able to change these later on.
2: Continue to make you account. When you select what your good skills are make sure you select Barter so it is higher than 25.
3. Talk to Sunny Smiles. When she asks if you would like to continue the quest select yes or no depending on if you want to. When you are done go to the saloon and talk to Joe Cobb. Tell him you want to help kill Ringo. Follow him outside and talk to him when he stops walking talk to him again. Tell him you want to take over the town, and that you will kill Ringo. Kill Ringo, and return to Joe Cobb. Tell him you will collect items from Chet. Kill Joe Cobb and all the powder gangers. Then enter the General store.
4.This is the actual glitch. Say you want him to donate to the Powder gangers. Then select the Barter option. He will give you 30 9mm rounds, leather armor, and XP. The options never disappear so repeat over and over again until level 30. BE CAREFUL WHEN CHOOSING YOUR PERKS. The perks you choose between level 2 and 4 you will loose. When you select perks, if there is a "Swift Learner" one available, choose it. When you are done leveling, leave goodsprings. (LEVEL CAP IS 30) Select edit character and change your stats to whatever you want. You will go back to level one when complete. DO NOT PANIC. You keep the perks you selected and immediately gain all the XP back and become level 30. This allows you to get double the perks.
Youtube tutorial: youtube.com/watch?v=WP4Bq3EFwhg
If this works and helped you, please thank and +rep (rep not necessary but appreciated)
List of perks you will keep after leaving goodsprings. ONLY SELECT PERKS ON THIS LIST (below) (the only perk not on this list is swift learner but I recommend taking it for faster leveling)
Any questions just ask!
Action Boy/Girl
Adamantium Skeleton
Animal Friend
Better Criticals
Bloody Mess
Cannibal
Center of Mass
Chem Resistant
Chemist
Commando
Computer Whiz
Concentrated Fire
Cowboy
Demolition Expert
Explorer
Fast Metabolism
Ferocious Loyalty
Finesse
Fortune Finder
Ghastly Scavenger
Grim Reapers Sprint
Gunslinger
Hand Loader
Here and Now
Hit the Deck
Infiltrator
Jury Rigger
Laser Commander
Lead Belly
Life Giver
Light Step
Living Anatomy
Long Haul
Math Wrath
Meltdown
Miss Fortune
Mister Sandman
Mysterious Stranger
Nerd Rage!
Nerves of Steel
Night Person
Ninja
Nuka Chemist
Pack Rat
Paralyzing Palm
Piercing Strike
Plasma Spaz
Purifier
Pyromaniac
Quick Draw
Rad Absorption
Rad Resistance
Robotics Expert
Scrounger
Shotgun Surgeon
Silent Running
Slayer
Sniper
Solar Powered
Splash Damage
Spray 'n Pray
Stonewall
Strong Back
Super Slam
Tag!
Terrifying Presence
The Professional
Toughness
Unstoppable Force
Vigilant Recycler
Weapon Handling
HAVE FUN!
(this took a long time to write out)...