Trim wick to 1/4 inch before first burn, and as needed.
Make sure you burn your candle for 3-4 hours the first time.
Each time you burn your candle, make sure it melts across the entire surface before extinguishing to make all of the wax burns evenly throughout the life of the candle.
To get the last bit of wax out to re-use yoru bowl, you can put the candle (not hot!) in the freezer overnight and the wax should easily pop out the next day, OR you can run hot water into the candle to melt the remaining wax so you can scoop it out. Do not attempt to do both methods together or your bowl will break.