I suggest you spend some tuition and go directly to school! In this way, you can learn the technology without wasting time! Now all schools combine theory with practice. There are real-life practical exercises in the school, plus hands-on teaching by teachers. Combine theory with practice. You can learn skills in this way. And then work in the store. Actually, it's an internship, but I get paid. When I get to the store, I can do everything and understand everything. It is not good to go directly to the store to study now, and the guests are picky now. I can't practice. There is competition among employees. Even your own brother can't do anything about it! So go to school to study!