Way to make me feel bad; my response was not serious. I just wanted you to know that ultimately, you will have to sit down and put time into the piece.
Here are some serious suggestions:
Pay strict attention to the rhythm and listen to yourself. After practicing a section/piece, I like to record myself playing the section both slowly and quickly. Sometimes I sound great, most of the time I'll find I've overlooked something.
Practice slowly, but practice with the performance tempo in mind.
Work out fingerings before you start practicing.
Practice the Db major scale with proper fingerings. Start practicing the Db scale on different keys. For example, start on Eb, F, etc. Make sure you keep the proper fingerings.
Divide up the piece into sections to learn and set reasonable goals (like learn this section in a week).
There are 100s of other tips; just search the forums. Good luck.