Craft a Brewing Stand
Get Blaze Powder for fuel
Get Water Bottles
Get Nether Wart
Put Blaze Powder in the Brewing Stand
Add Water Bottles to the Brewing Stand
Add Nether Wart to make Awkward Potion
Add Sugar to make Potion of Swiftness
Add Redstone to extend the duration
Add Glowstone Dust to increase the speed level
Use a Fermented Spider Eye to turn it into a Potion of Slowness if needed