QUERY REGARDING MEDICINE. Depression?

My psychological evaluation report says that I am suffering from mild depression. My doctor had firstly prescribed me Imipramine 25mg with paroxetine 12.5 mg but when I told him that I have to give my exams and I don't want a medicine that can cause drowsiness then he changed the medicines and prescribed me Escitalopram 10mg one tablet at night. I had this tablet for 10 days and after when I told him that I am feeling sleepy because of this then he changed it and prescribed me Duloxetine 30 mg one tablet twice a day. But after consuming Duloxetine 30 mg I started having profuse sweating and constipation along with heavy drowsiness. I told my doctor about this and he is said that these are normal side effect of this medicine. But I have to study and attend online classes, yesterday I slept in between my online class due to this medicine. I have stopped Duloxetine. I want an expert opinion on this one as to which medicine is best for treating mild depression?