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If you're looking to enter 2025 feeling like the best version of yourself, TikTok's "The Great Lock In" — also known as the winter arc least season — may be the exact trend you've been looking for. "It's all programming your mind to go hard for a sprint of time. A sprint. It's not meant to be forever. But it's meant to be a time you put forward an immense effort in some area of your life. It could be fitness, it could be your finances, it could be your career, it could be a business. It could be all the things," explains creator Tatiana Forbes in a TikTok with over 800,000 views.

The key is to put together an routine that'll help you feel like the best version of yourself by the start of the new year. "This is the time where peopl

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