as you say you are so indecisive, maybe it is best to tackle one thing at a time to be more successful at your goals. you have got the job now, which you say is going to be physically demanding, which can meet the exercise challenge a bit maybe? jobs being so difficult to get in this economy, it is best to take what you can get. this does not mean you cannot apply for other jobs you find more preferable and then move on to another if you are offered something you like better. then when you have the job you want, you can move on to phase two and add the gym or volunteer work until you have adjusted and then add the third.