Any decision you are making in your current state right now will be biased. My advice after tutoring 4 Phds. Choose the mentor not the field or program. If

Any decision you are making in your current state right now will be biased. My advice after tutoring 4 Phds. Choose the mentor not the field or program. If you have a good mentor/professor it will make a big difference. You can even work in "botanic" (non-related field) but he will find a way to make you useful. And being useful is 70% of curing depression. We need to feel useful. Check which professors are friendly and have time to real meet with you and talk to you. I choose mine based on that, some people laugh he was not an start and that he loved star trek too much. Only me and other student finished ON TIME our Phds.