Welcome To HealthcareMagic forum,
It seems that you have a hormonal
imbalance .You have not mentioned your weight ,but in such cases where there is hormonal imbalance we get to see certain features in body like: facial hair ,weight gain, acne ,scalp hair loss and irregular periods
.Kindly let me know if you have any of these feature.You should get a blood investigation done for your hormones and a ultra sound
of abdomen which would surface any hormonal imbalance .
As far as roaccutane
is concerned ,its a wonderful medicine for acne but one should take certain precautions before taking it .You should have responded to it by now...but probably for your hormonal imbalance you have not responded to it.I also think that you should stop roaccutane since you are suffering from depression
.There is a chance that roaccutane might aggravate your depression.
In hormonal cases ,one responds to hormonal treatment only like to diane 35,aldactone
,cyprteron acetate etc..
So consult a good dermatologist
who can first investigate your case properly and then treat you .
Along with this you should check what all creams you are using .Avoid using any moisturizing soap or face creams .Don't squeeze your pimples ,else they would leave marks.For marks ,along with oral medicines ,you can go for chemical peeling also .Always use a good spf sunscreen daily & a anti acne face wash.
I hope this would help you to analyse your self better.