It's very idiomatic phrases so they are difficult to translate well without loss of their style. Literally it means: I'm a very poor basketball-player. So it comes, I meant to say that one cannot do what is beyond his abilities. ("выше головы не прыгнешь" is a proverb, see http://translate.academic.ru/%D0%B2%D1%8B%D1%88%D0%B5%20%D0%B3%D0%BE%D0%BB%D0%BE%D0%B2%D1%8B%20%D0%BD%D0%B5%20%D0%BF%D1%80%D1%8B%D0%B3%D0%BD%D0%B5%D1%88%D1%8C/ru/en/1)

انا اصلا لاعب كرة سلة وحش اعمل ايه؟ مش عارف

اه كله مظبوط ميه ميه، انتي كﻻمك زي الفل ما شاء الله

Добавить нечего как и исправить.

Спасибо большое :)