Thank you Koepel! I'm sorry, I should have said that I didn't apply my last question to a nano. Thanks to you, I now understand that I don't need a driver.
Nevertheless, I was still wondering whether the design would be possible with just one P-Channel as a driver. I took 100Ω so that the mosfet can be turned off quickly. I can also use 200Ω there 
I have now heard from several that the 1N4007 is too slow. Why is it suddenly fast? And what do you mean with leakage?