I am in depression and i have been taking different snri drugs for 8 months but my depression is getting worse, should i try ssri's, what should i do?

I am in depression: It probably won't hurt trying some SSRI's , and might benefit. Unfortunately, diagnosing mental health disorders is still fairly subjective, so many times it's trial + error before finding right treatment. Might be more than just depression, such as Bipolar Depression;PTSD or certain borderline disorders. Should be checked for Thyroid or other underling diseases. Last, Consider MRI of brain