First insurance for new entrants

Hello, I’m about to make my driver’s license. I think I’m finished in October and I’m already getting smart about insurance. It’s certain that I’m going to buy a small car as a new car. The car is financed by my parents. The car is registered as a second car by my father under DBR, because everything is much more expensive in HH. Now I have a few questions about the comprehensive, the liability and the registration. 1. With how many percent would I be without me Is that 140%? 2. If I am now causing an accident and my father’s full-time insurance will then be automatically upgraded to a high level? 3. How many percent of the year is absolved when driving without an accident? 4. If I change my own insurance later I will take the percentages with which I had under my father’s insurance? 5. I wanted to complete the full-time insurance with € 500.00 SB, because it is only about € 100.00 more expensive than if I would take € 1000,00 SB. What do you say about this? 6. I want to register the car with my parents in Meck Pom instead of in Hamburg where I live. What disadvantages does it have for me except that I have a different license plate? I would be happy if you could answer my questions.