Hi Maha,
Ahh if you started the medication, you have to finish the complete dose pescribed to you by your doctor.

Also, I was really depressed at one point. My doctor told me either I could take the medication or do some physical activity. I did not take any medication, but worked out like crazy. It really helped  me. Find a physical activity that you like and stick to it. You get two benefits: you get better w/o having to take medication! and you will get in shape too. For example, running or working out at the gym really really helped. Again, it won't work if you do it for one day and skip for months. If you are regular, I think this is the best way.

What ever method you chose, I hope you get better soon!
Take care