Uprooted, it's not the standard of your English that is getting up everyone's nose; it's the fact that you don't care that it's bad and are not prepared to improve. I'm sorry you can't see that difference. Unless your father is going to automatically give you a job, you (note
you, not
ye) will have to improve your attitude in your career, whether it's scientific (reports to write etc) or in aviation.
There's is a big difference between lazy English and dyslexia; if you do suffer from the latter (which I doubt) then you could have some difficulties with reading the study manuals. As it is, I suspect that your reading skills are just fine!
Now, you have a choice; you can be contrite and take the advice on the chin or you can carry on as before. The former will probably mean that you will get more help and advice as and when you need it; the latter won't!
Now is the time to capitalise on both
Oh very droll Squeaks!
Cheers
Whirls