College. You need a degree and a commission to be a USAF pilot.  There are three ways to get a commission: 1. USAF Academy 2. Air Force ROTC 3. Air Force OTS

Yes, they can enlist, but that is not the issue here. However, only officers can be pilots.  Officers must be US citizens.

Any of the hard sciences (math, physics, chem., etc) and engineering degrees.  There are probably a bunch of others, but those cover most of them.

That is the official US Air Force site, so it should be accurate.   Which part are you refering to, exactly?

I don't know what the german requirements are, but you need to be a US citizen, have a college degree, and go through a commissioning program (US Air Force Academy, Air Force ROTC, or Officer Training School) before you can qualify for a pilot slot in the USAF.  There is also an age limit.

Whatever you'll do the best in and be happy with. That will help you get a high GPA, which is important when it comes to choosing what job you want. The USAF recommends having a technical degree, but it is not required.  I'm a history major, for example.

Being a girl does not really influence anything for applying. The rape scandal was in 2003.  The academy took MANY steps to correct the problem.  Cadets are now some of the most knowledgeable students about sexual assault and prevention.   We are very protective of our friends and classmates.

To be a USAF pilot, you need to go through a commissioning program (the academy, ROTC, or OTS), get a pilot slot in there, and go through pilot training.  Flight experience is a positive thing.

First, let me refer you to the official information:  www.academyadmissions.com You look like you will be very strong on academics.  Academics are 60% of the Whole Candidate Score (what admissions uses). You really should have at least one sport.  It does not need to be school related.  Club sports, competitive martial arts, ...

Most of it is the flying.  I also want to defend my country.  Killing is not something I really want to do, but I would rather kill enemies than see my own countrymen die at their hands.