@ structure
With all due respect but I think you are making this look way too easy.
This is NOT about repeating a "class". I am talking about the final exams which decide everything.
You cannot repeat them as often as you want. I am talking about studying something for 6 years and then it all comes down to the final exams! That is an insane pressure and when you're 30 and cannot afford doing any more mistakes then it is an even more insane pressure.
And floaters can also be totally depressing. I am not alone with this. There are other floater sufferers who even quit their jobs because of this. Maybe you could take this easy and not bother but not all people can do this. For me being outside in the sun or also during normal light is a torture, believe me that. And no positive thinking or trying to ignore the floaters helps.
@ pauladrive
Thanks for the list. Unfortunately I cannot work out anymore. I got too many injuries. My body didn't tolerate working out very well. Working out was the last fun thing I had in life and I also lost this a few years ago.
@ gmerits
Does zoloft also contain fluoride? And does it have many scary side effects? I know exactly if I get it and then read the manual and if it has many side effects then I won't dare to take it.

And another problem is, what if I start with something like zoloft and then have to watch out for many drug interactions and cannot use things anymore which I used before? For example sometimes I take a betablocker before a test to keep the pulse down. I don't know if I could still do this when I take something like zoloft. Or what if I am on zoloft and then get anxiety and wanted to take a tranquilizer? Most likely I could not do this when I also take zoloft right?
And would zoloft also help against ocd kind of thoughts and anxiety in general or only against depression? I'm not sure what kind of drug would be best for me. I needed something against depression and anxiety. Depression alone would be not optimal.
What I also worry about isn't just testing something and if it doesn't work then getting off it again. What if someone's depressed and then takes an SSRI like zoloft and feels worse and then gets off it but the drug has somehow changed something in the brain and now he's off even worse than before? Is this possible? That's scary.
The thing is you can know something in theory and then still not be able to do it. A fat guy may also know that he should eat clean but then he doesn't have the strength to. I have also moments where I think that I'm going to rule over my emotions and thoughts and I really wish it was that simple. I REALLY wish I could stabilize myself and not always have ups and downs with much more downs than ups but then I am simply unable to put it into practice. Many times I wake up in the morning and already feel miserable and simply have no hope and then I cannot simply motivate myself. I have listened to theories and tricks to motivate yourself. Sure, you can motivate yourself. You can tolerate a lot and go through shit if you have some hope to look forward to. But what if you have no hope what do you do then? What if you have nothing which keeps you going? I wish I had a stable hope which I can hold on to but I haven't. It's always ups and downs. If I feel normal during the day then I feel depressed when the night comes and so on. I am totally not used to not being depressed I don't even think if I could deal with this. And I also really don't know how I could not be depressed with all the stuff I see every day. Even if I had no problems with my health and studying I'd still have more than enough reasons to be depressed because of my family. How could I not be depressed when others who I care about have problems and I can't help them?

I'd feel guilty if I was happy and lived like everything's fine cause it's not.