So it could be a number for things from you not being disciplined enough or any other various mental issues to you have really low iron and no matter what you’ll feel fatigued until treated. My little sister went YEARS of her life feeling as though she just wasn’t as good as others and always feeling like shit for never having energy to do anything well come to find out she’s anemic! Once she started getting treated she bounced back now she works overtime every week goes to gym almost daily turned her whole life around. Make sure your in good health before you get too hard on yourself!