On my first day of kindergarten my mom and aunt dropped me off.
How did you feel on the first day of kindergarten?
I felt sad, neglected and uncomfortable.
It's understandable that you felt alone if you were not explained about kindergarten beforehand. Although all the kids in your class likely felt similar, you should know that parents are supposed to take their kids to school. Not doing so would make a parent seem neglectful of their kids' education.
Are you sure I wasn't just being a crybaby?
Not at all!  Being able to feel that way shows you were in touch with your feelings!  There's no such thing as being a crybaby, that's just a label applied by people who don't have a good handle on their own emotional life.