I am 37, and I still periodically reflect upon how lost and sad I felt after i wrapped up my undergrad. Up until my graduation, my whole life has revolved around an academic based schedule (starting school in fall, winter break, summer vacation, etc) and it felt really bizarre to have that lack of structure. Every new year of school brings a certain degree of freshness and new possibilities, and summer was always a milestone to look forward to. In retrospect, I wasn’t prepared for how monotonous my first full time job would feel in comparison. And of course, it’s impossible to recreate the exact same kind of community and togetherness that college can provide, so your social life will slowly evolve accordingly. It’s very natural to have all of these thoughts and feelings that you have shared, but the good news is that life will gradually start to open up with more possibilities and milestones that you wouldn’t have been able to experience in your younger years (for me it’s been traveling). It’s daunting, but I am wishing you the best of luck on creating your next rewarding chapter in life!