Translation of overnight in Spanish

If you want to learn, you need milestones, so that you can plan your learning curve. Together, we will decide on 3-4 days, where we will study intensely. Perhaps your German will get a little bit better by then.
I am a computer scientist and I also have a small restaurant with my younger sister (she is also already 53). You can come and visit, I will buy you a drink and we could chat a little.
I come from Bavaria and live in Munich. How are you? Sorry that I am replying your email just now, but again I am covered with work. My boss is back from vacation and gives me many assignments.