Steal a mortar and pestle. Steal a lot of food items and turn them into potions. It should not take too long before you reach the Master Of Alchemy level.
Get two ingredients that form to make a potion. Use the "Duplicate items" glitch on the ingredients to create a large number of them. Then continually, make potions and your Alchemy will increase extremely fast. Note: Only duplicate about 100 of each ingredient at a time or the game will freeze.