While wanting to be encouraging, I would lkike to point out that instructing should be more than teaching what you've just been taught, it should be teaching what you've
learned over years of varied flying experiences.
What qualifications will I need to get
There's a saying (one of hundreds):
"It takes 45 hours to learn to fly, and a lifetime to learn
when to fly".
Maybe not a whole lifetime, but..... Instructors are honour bound to teach not only from the "curriculum", but also from first hand experience. When a student asks "why", the answer has to often come from the instructor's experience.
Instructor7, consider the value in a few hundred hours of well varied experience, so when you start to teach, you can explain
why.....
I'm not an instructor, though it's something I have thought about. The experience I have is getting me close to "having what it takes", but until then, I'll type here....