Help I am stuck with port district.It says I have to prepare my living room or something.I don't know what to do I am stuck.

Maybe i am just stupid, but after i talk to ura for the first time and deku says ''i should get to work'' or something like that, i don't know what to do after that.i clicked on the class seats, went down the stairs and also went outside and couldn't do anything.

I'm stuck on the "Salute again Miss Midnight" mission. It says I should visit the ALC room and talk to her, but Deku refuses to do it

Edit: also there is a permanent yellow exclamation mark on the UA and on ALC room all the time

I'm kind of having trouble getting past the first fight of the game, the one that needs to be finished before the encounter with Uraraka, the first two delinquents are good, the problem is the mono, which for some reason I can't get past him, would you have any tips or something? 

I need to visit midnight but i cant go into the extra classes room, how do i do it?

Heyyy

I'm not being able to advance in the story. In regards to the missions I have Training Time (2/2) with both Uraraka and Asui and also Additional Hassle 3 with Midnight, but I had received a message that I had completed the Nemuri stuff until now and I'm also not able to have the extra classes (yes I went in the noon, and I also tried lowering my grades to no avail).

What should I do to advance in this particular point of the game?
Sorry if I seem rude or anything, english is not my first language, thanks in advance!