hi bera, welcome to PC
I don't think there's a good answer to your question because everyone is different, but getting a diagnosis and then looking into treatment is what is most likely to get you feeling better. Until then I suppose it might be best to consider things not in terms of being "cured" but in terms of managing and living with your depression, for the time it takes to get well. It's just my experience but things got easier for me when I stopped asking "when will I get better" and instead started asking "what can I do to manage my depression while I'm getting better?"
Again, welcome. Keep us posted on how you're doing.