I was thinking of you yesterday, Hopeless, as my youngest son left for college as well. Serious tears. I kept telling him, as I was sobbing/hugging him, not to let my tears affect him 'cuz I'm just insane and he needs to ignore me. Bless his heart, his response was that all is as it's supposed to be - he's heading off to college and I'm crying.
Weeburt is also not a real social kid. Whenever my kids leave home for any period of time, I always sneak a letter into their luggage. My letter to Wee this time included a request from me that he make a conscious effort to not say "no" when asked to go anywhere with peers - Walmart, pizza joint, book store, whatever. The only exceptions I allowed were if asked to go to a heroin den or bank robbery, LOL.
It's especially hard to have Wee go because he's always been my easiest kid. Just a total delight. Wicked sense of humor and sharp wit. And I cannot believe how fast the years have gone by. I swear he was just in kindergarten yesterday, and so proud to be tall enough to touch the top of my head last night. Today he's a 6'5" man, living in a dorm. I know he will figure out how to take care of himself, but... I worry because sometimes he's a little oblivious.
It's good that they're heading out. They'll struggle and will make mistakes but will also learn and eventually thrive. It's how it's supposed to be.
The highlight of my day yesterday was that difficult child came over specifically to check on me. He walked in, asked how I was. I burst into tears for the zillionth time and he just hugged me and told me everything would be okay. Made me so grateful yet again for all my kids.
Hang in there. And know that you're not alone.