Confusion about taking medicine.

Hello sir,I am 18 years old and currently I am in class 12.From 7-8 months I am facing a problem with my studies.I am not able to remember what I studied an hour ago and same things happen for other events like remembering someone's name or the path I have travelled.This makes me anxious.My family is very supportive to me but has a old thought pattern so it was difficult to convince them to take me to a psychiatrist but finally I went to Patna aiims and had a consultation with psychiatrist.But the problem is that after consuming the medicine I had some changes like feeling like vomiting,restlessness, sweating, loss of appetite.So without consulting to the doctor my parents forced me to stop the medicine.Medicine were 1) sertaline daxid 50 and 2) Etizolam 0.25 mg.Now I don't have trouble with sleeping and eating. But still I have the problem of forgetting things.I am attaching my report. It's impossible to convince my parents again. Please suggest me the best. Shall I take the medicine?