How to be responsable

In my personal opinion I dont'understood the whole idea.I thought the class will go together from the school . It is my fault because I dint' pay attention .I was planning to go a museum in my community with Rossanna. But after I went to my doctor's appoiment I had to change my plan This is not an excuse you are right when you told us about not folowing the rules . We supposedto do because we are adult College students.