Well is easy to have insomnia when you don't have to do something in the morning. Perhaps you can read some books or watch TV early... it used to work for me. Or doing some exercise during the day, like going for a walk. But I guess that, perhaps, your insomnia is related to the depression you talked some time before.
Hope the medication works for you!
Today in english classes we talked about sleeping patterns, good moment to put that in practice