I am a master physics student in a German univerisity. I started with my master thesis topic in May 2019 and at that time I had wrong evaluation about the pre-requisite and difficulty of the topic I chose. Later on, I found most of the problems/papers that I need to solve/read, I almost do not have any pre-requisite knowledge for them and I have to learn from the basics each time by myself, and I encountered many problems while self-learning the basics which I do not know whom to ask (due to the pandemic, I have to work alone in my hometown in my country and I do not have a suitable friend I could think of to ask questions) and I felt my interest for the master thesis topic got wiped out after these very difficult processes.
I have long time depression, and had been taking anti-depressant regularly before, but then I stopped taking them due to the negative effect of being sleepy and other negative symptoms which makes me hard to concentrate on study.
I also face a lot of pressure from my parents, and I am often told to finish the thesis as soon as possible though I have explained that it is too difficult, so I currently moved out from my home and live outside in order to get more concentrated on study and avoid receiving the pressure from my parents.
My current situation is that I have already taken more than 2 years in the thesis (where normally it lasts for 1 year) and I have applied several extensions for my thesis topic but I felt the extension is not bringing too much help for me, as I am still depressed and the problems are still difficult. Each day I cannot control myself well and waste a lot of time doing other non-related things, and I feel very demotivated and I do not see any hope to solve the endless difficult problems in order to complete this thesis. I wish to know if any of you could give me some advice/share your experience in how to dealing with my situation. Thank you very much for reading.