Hi! New here, I need help with discipline!

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My name's Alissa and I'm 23. I don't think I really eat so bad, but over the past couple years I've become sedentary. Can't seek employment since hubs has a traveling career; We travel together. I'm at home all day with no friends or family to help get me motivated. I have a reaaally hard time making myself do things that don't have immediate payoff. I just want to trim off a couple lbs and rebuild some lost muscle; We're moving to Florida soon (yikes!) and I have enough social anxiety w/o having to worry about looking good at the beach. Plus, I need to get out of this slump, isolation has given me the moody blues. Pleased to be here, Thanks!