If you have already managed to return to visit your cousin in the hospital, it means that you have already reached the maximum content, from then on, there would only be a few scenes or minimal things left.
What you have to do is get to 10 love with any character that appear at school After reaching that level, you will be able to revisit the hospital and repeat the scene and you will be able to ask for advice to improve your interaction with the characters and you will also have access to the jobs
