I'm currently navigating a job transition within my research organization and am expecting an official offer for a new position soon. The hiring manager has assured me that everything is moving forward, but there are still some HR steps to finalize before I can officially accept. I'm hoping to start around mid-September. However, I'm dealing with a challenging supervisor who's become increasingly difficult to work with over the past year. His unpredictable mood swings have made the work environment quite stressful, especially after finishing my PhD. I'm concerned that once I submit my resignation, the final two weeks could be really tough. I have about 72 hours of vacation leave and 53 hours of sick leave. If I transfer directly to the new position, I can carry over both types of leave. But if I resign and take a break, I would lose my sick leave, although my vacation would be paid out. Additionally, my brother and sister-in-law are expecting their first baby soon, and I want to help them during that time. Unfortunately, the family leave policy doesn't cover this situation, so I'd need to use my accrued leave. I'm considering using some sick leave before I resign since I've been feeling burnt out. Once the new job is official, I would give my two weeks' notice. If my supervisor is professional, I would work through those two weeks, but if he becomes hostile, I might use my sick leave to manage the situation. I'm weighing the option of taking a short break between jobs to decompress and spend time with family, but that would mean losing my sick leave. I'm looking for advice on how to balance professionalism, finances, and my mental health during this transition.