You shouldn’t base your entire budget on earning commissions that aren’t guaranteed. But even if you assumed you’d always make at least $2500 in commissions, that apartment is too much for your income. Based on your story, it sounds like you’re making an impulsive decision to rent the “perfect” apartment to fix your life, because you’re unhappy that your boyfriend broke up with you and you still live at home. Renting a fancy apartment isn’t going to start or fix your life.