Translation of halfway 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 had never heard the phrase before. In America, there are also different idioms than here in England. It seems that the Americans say it differently than we do here in the United Kingdom.
Last week I was at the birthday celebration of my grandma. She is 95 years old and very healthy. I'm 33 years old. I work as an electrician, and I had my own company until last year.