Ocd 40% GAD 30% dprsn 30% To do now?

Hello dctr As my psychiatrist told me that i have 40% ocd , 30% gad and 30% dprssn He tried many medication on me like buproprion fluvoxamine escitalopram but noone really helped me they just improved my mood only.. Nowadays i am taking nexito 20 mg in mrng and nexito ls 10 mg dose in night .. It also helped me in mood and controlling my emotions but still i am not 100% normal , i still think a lot about stuff , future ,past , There were days when i used to study 10 hours a day and now i hardly can study 1 hour , Well after nexito ls 10 mg at night i feel fatigue in the day , drowsy, lazy What to do now ? And what is your thought about my illness and current medication I am still on nexito bcz i can tolerate it better.. And my mother is a schizophrenic patient but i dont have any psychotic symptoms. I want to study 8 hours at least This is my 30th post on practo , every time i have any doubt on my psychiatrist i post here ...i think i am the most concerned patient