OH yes, it is great to go to sleep when you have an acute depressive episode. Indeed, it is the only good thing in the day.
Well, very few generic doctors are qualified for treating depression properly. It is a stragne disease and knowledge about it has only been acquired recently. Check out that waiting list and pull someone's jacket if necessary.
Your diagnose too may not be simply "depression", considering these euphoric phases you talk about. You need a psychiatrist.
But don't overlook the good news: help and hope are available!