I turned in my letter of resignation yesterday and two weeks from tomorrow I'll be unemployed. I quit to go back to school full time. I posted a https://www.physicsforums.com/showthread.php?t=464314" back in January, but I was able to work through the semester and take the two classes. I did well, worked all summer, and got accepted into the ME program. My classes start on Monday and I have 6 semesters to go. I'm both excited about the opportunity and anxious about leaving a very secure job that I actually enjoy quite a bit. That said, the job isn't all gravy and I won't ever have a better opportunity to go back, so I'm taking it. I worked hard for the past 4.5 years to make this possible and I know there's still a lot of hard work ahead of me (albeit quite different).