How was your experience switching from ARNG to Army Active-Duty?

Has anybody ever switched from the ARNG to Active-Duty? How was the transition once you finally become Active-Duty? Asking because I am in the process of getting my unit to sign off on it. I feel like I am losing all of my connections with soldiers that I have developed professional relations with over the years. Not only that, but my only experience has also been with the ARNG and not Active-Duty. I understand it's going to be a different atmosphere, and that Active-Duty does things differently.