Help! If I could sleep my life away I would! What is wrong with me?

No matter how much I have slept, I always seem to be half dead. I live a lethargic life. Except for work hours, the rest are all taken up by sleep. I HATE this way of life, but I can’t keep my eyes open. I would do anything to gain energy. I have tried all kinds of vitamins and anything possibly imaginable, but I still feel like death warmed up. It can’t be the anti-depressants because I have tried various ones thinking it may be the cause. They don’t seem to do that to anyone else who takes them.
Do I just have to accept that I will always be like that?