Soccorro: I just failed a prep exam for the second time! I have been told that I might not have the mental capacity for nursing. Then I just left 2 hours early and fell asleep on the bus, bringing me to some unknown place. Life is shit, why am I even bothering? I hate myself. I'm 25 and still don't have my shit together. I haven't even managed to finish any kind of proper job training. My former bullies are out there being lawyers, engineers, pharmacists and physicians. What kind of human trash am I to deserve this?
If you're trying to go for a nursing 'career', particularly in Germany at present, you're not human trash. You're quite, quite the contrary. You're the forgotten backbone of our failing social security system.
At 25, I didn't have my shit together. My brother didn't. God almighty my sister didn't. All of us have experienced hilarous failures, then performed a total 180 in our initially chosen professions (one of us way way way past the age 30 mark) to get that shit together eventually. And a job in which you're not doing well for a whole lot of possible reasons will always be accompanied by assholes who insult your intelligence as a default explanation.
You're young, you're motivated, it seems that you've chosen a profession that's massively prone to produce burnouts, and it seems that's where you're going. So you can either find a miraculous way to de-stress or make totally new plans for your life.
And hear me out here: for those plans, you still have a LOT of time. You can still choose a new path at 45, I've seen some incredible examples from close relatives and friends.