Rant!! Emotional - crying in school bathroom

So today really sucked for me and I don’t know what it is but getting hit by doors is just not enough. I take the school shuttle often but the one I just took was full and I had to stand holding onto the handles. The girl in front of me was taking some time getting situated so I, in no way, was physically capable of moving out of the doorway area. The shuttle lady immediately starts the bus and then yells at me for being in her way so I let that one slide. When we were at another stop, few got off but people were taking it as an opportunity to spread their legs a little and have some space for themselves, again making it physically capable for me to get off. Once we get to this third stop (where many get off) I was looking for a space to sit but the shuttle lady (without any hesitation) yells at me to get off her bus and to wait. Now some may find nothing wrong with this but I am a very sensitive person and the combination of me almost on my period and someone yelling is not good. I treat the shuttle ladies always with a smile and a thank you but today just didn’t seem like a day they wanted that from me. When I got back on the shuttle I was holding back tears because I’ve never been so embarrassed in my life. She tried to tell me to have a nice day but I didn’t want to burst out crying in front of everybody and embarrassing myself even more. I bolted to the bathroom and I’ve been in here for a good twenty minutes crying and I’m still crying as I type this.