100% yes. Dont let anyone talk you out of it (including yourself). This wont go away with exercise, positive thinking or any other 'cures' its chemical. And no, you wont know, you just have to trust other people to know & go with what they say as you are not in a position to judge it right now.
To answer SheBGB who may not have first hand experience of antidepressants for clinical depression they will change how you feel, whst you do, your confidence, your motivation & more. Clinical depression IS low self esteem (constant guilt & feeling wrong) Low self esteem doesnt cause it as such it IS it. Its chemical. Counselling wont address this (I know a number of people who have spent a fortune on it & until you tackle the root cause you wont make any progress).
Dont be tempted to stop taking them once they start working either as the depression will only come back
After a week you will feel like you have your brain back...its totally worth it.
[This post was edited by TJM at . ]