Objectives need to be S.M.A.R.T: Specific, measurable, achievable, relevant and time-based. Achieving happiness doesn't seem to meet that. Perhaps... completing a game you enjoy this weekend would do it?
Not making too much of a mess with other peoples emotions. Not being too much of a selfish cunt. These are recommendations I would give to some of the people I know. I'm a cunt too but only in retaliation. I have a fundamental generosity.