I started my pHD a yr ago. I don't think its for me. I am about to quit. I don't want to pursue Masters either. BUt I don't know what to do next. Very disturbed and confused. Can anyone suggest any constructive advice.  I did biological science as undergrad..I am a F1 student....Is it possible to quit in the middle and apply for jobs? How does the visa thing work in that case? Thanks