It has been really overwhelming for me too, OP! DD18 is an only child, so this is one and done for us. Thursday was the last football game of the season, so it was Senior Night-DD has been in marching band for 6 years, and concert band for 7, so it really is the end of an era. We stood on the field with her, and it was so surreal. I can't believe it's over.
Yesterday, she got her first college acceptance letter, and she's taking the ACT one last time in December to try to qualify for a full scholarship.
The expenses are obscene. In one week last month, we paid out $645, and we still don't have her graduation invitations or casual senior pictures done yet!