Even if you do enjoy being evil, whatever satisfaction it gives you will be temporary.
Plenty of people serving life sentences in prisons that can only be compared to Hell on Earth were very pleased by commiting temporary acts of "evil".
And most evil acts are punishable by law.
And we have ways of keeping track of people who have demonstrated that they are capable of and have commited certain acts. Sometimes we keep track of them for the rest of their stay on Earth.
Should you be an evil person with a brain, you might be able to keep your consequences at bay for a longer period of time, but inevitably they will come to you.
So to answer your question, can you be happy doing evil? Yes. Can you stay happy doing evil? No.
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