For most people, Winter is just a season for cozying up in the house, indulging in Holiday treats, and watching endless Hallmark movies, but for a special group of people, winter is a transformative period of intense self-focus and discipline, also being referred to as your “Winter Arc”. The newest trend on TikTok- users are vowing to go into isolation and laser-focus on their personal goals all October, November, and January- aka LOCK IN. It’s the perfect blend of self-discipline, goal-setting, and the quiet introspection the winter naturally encourages. Whether you are trying to improve your fitness, level up in your career and finances, or declutter your mental space, this…