My 100th rejection? What's wrong with me?

As every student I came here with a lot of expectations and dream's. But now, it seems everything is just fading out. I'm just about to complete my degree in 5 months. No working student, no research assistant job, only working as a rider for past 2.5 years. People with bad German than me getting more jobs. How? I have B1 level of German. I'm very good at conversations. Just my technical German is bad. Did only one interview with Audi in German same problem technical words. Any tips? Or should I just accept my faith or destiny and go back to my Heimatland. Any tips on what skills should I learn would be appreciated 👍