Here's what bittersweet means and how to use it (dictionary.com):
both pleasant and painful or regretful: a bittersweet memory.
pleasure mingled with pain or regret: the bittersweet of parting.
I'm looking for an adjective to describe how you feel when something is bittersweet. For example, suppose you are happy to be graduating but sad about moving and closing an intense chapter of your life. You feel sad and happy at the same time.
It was such an intense afternoon. I was feeling so ________ . I don't think I can handle another good-bye right now.