Memory loss and unhappiness. Again.

I'm having issues with my memory and sometimes I can't understand stuffs that are in front of me That happens only sometimes Last year i was in a consultant with a therapist , he said I have depression and told me to get a MRI test of my brain After looking at MRI he said my brain is way too dry and it's getting constrained After taking medicines for 3months i started to see major changes , i was feeling way much better and i had less problems with my memories But next time my doctor increase the dosages and i started having weakness and low blood pressure problems I secretly decided to Stop taking meds ( so my parents won't get mad at me) It's been more than 3months ( after dosages getting increased) and i Don't see major memory losses but i still have issues with understanding stuffs ( even tho everything are infront of me) I had to consult my doctor on 15feb but i didn't   Im scared of my parents , that's why i don't want to consult again .