u/Good-Presentation281

I am 20 years old, living in Algeria. I am currently pursuing an Advanced Technical Certificate (Technicien Supérieur) in the installation and maintenance of Refrigeration and Air Conditioning (HVAC) systems. Alongside my technical studies, I am also learning German and am currently at the A1 level.
Up until recently, I was working at a local supermarket from 4:00 PM to 11:30 PM for a very low wage (around 1400 DZD per day). I decided to quit because I felt it was a complete waste of time—I wasn't learning any real skills or a craft that could benefit my future career.
Now that it's summer, I have a lot of free time, which will transition into semi-free time once my classes resume. I want to fully dedicate this time to learning a new craft, a hands-on trade, or a high-value skill. I am highly motivated to master something practical.
I am looking for your advice:
Given my background in HVAC and my basic German skills, what are the best complementary skills or trades I should focus on learning right now? Should I dive deeper into specific technical fields (like electronics repair), or focus heavily on my language skills for future opportunities abroad?

I am 20 years old, living in Algeria. I am currently pursuing an Advanced Technical Certificate (Technicien Supérieur) in the installation and maintenance of Refrigeration and Air Conditioning (HVAC) systems. Alongside my technical studies, I am also learning German and am currently at the A1 level.
Up until recently, I was working at a local supermarket from 4:00 PM to 11:30 PM for a very low wage (around 1400 DZD per day). I decided to quit because I felt it was a complete waste of time—I wasn't learning any real skills or a craft that could benefit my future career.
Now that it's summer, I have a lot of free time, which will transition into semi-free time once my classes resume. I want to fully dedicate this time to learning a new craft, a hands-on trade, or a high-value skill. I am highly motivated to master something practical.
I am looking for your advice:
Given my background in HVAC and my basic German skills, what are the best complementary skills or trades I should focus on learning right now? Should I dive deeper into specific technical fields (like electronics repair), or focus heavily on my language skills for future opportunities abroad?

​My Baccalaureate (high school finals) are in less than a month. On top of that, I have specialized exams for my institute right after. My daily routine has been a nightmare: balancing classes at the institute with a job. I am officially drained.

​The situation right now:

​Zero Energy: Even after quitting my job to focus on studying, I feel a terrifying lack of energy. I’m constantly lethargic.

​Brain Fog: I can’t focus at all. I’ve tried stimulants, Vitamin C, caffeine—nothing works. It’s like my body has shut down and is refusing to cooperate.

​The "Wall": I am severely behind on the curriculum. Every time I look at how much I have to study, I get paralyzed by anxiety and end up doing nothing.

​I’m terrified of failing, but I feel physically and mentally incapable of starting. It feels like my brain has given up right when I need it most.

​Has anyone dealt with this kind of extreme burnout right before exams?

​How do I force myself to start when I’m this far behind?

​Any tips on how to regain focus when stimulants aren't doing the trick anymore?

​I would really appreciate any advice or even just some words of encouragement. Thanks in advance.