Anxious abt future n lack of focus,

Hello respected doctors, I was facing Lack of focus, lack of interest , anxious abt future events and lack of deep sleep(disturbed sleep with lot of dreams). I consulted a doc at Practo He treated me with Major Depressive Disorder. He gave me Tab Lanazeo 0.25 mg ( 2 times) and Nexito 10mg. I continued it for 15 days.But after taking Nexito I felt instant/after 15 mins more shaking and trembling in body.I told doc but he advised to continue Now problem has increased and now I feel more anxious. Sleep patterns are not good.I can sleep easily but sleep is not deep and experience dreams. Increased lack of interest, focus and memory power. Can any kind doctor help me out please I am more worried about now for future treatments too.