Do what ever you wish with your education it wont do any harm. I dont have a degree or A levels but still I made it as a pilot.
Whats really needed in a pilot is some good smooth handling skills,good team work,good situational awarness and a willingness to learn. Everything else will come with experience and time. Its all very well having these fantastic degrees and A levels but can you fly the ******* plane.
Instructional flying will get you the handling skills and SA and the team work will come with practice.
All the best