What is wrong if I omit the I ,it is self understood with KEREK and not KERUNK or whatever.Would be very nice and good teaching if you explain the reason foe the correction,mistake, whatever you want to call it.
"Akarok jó sofőröket." worked for me and I didn't use the Én pronoun. Yeah, I wish there was a definitive "This is when you should use the pronoun at the beginning of the sentence." This language is very old, though.
Do NOT use personal pronouns in Hungarian especially not 'én' and especially not at the beggining of a sentence unless you want to emphasise it's ME and not you. Duo is obsessed with it and it's so very wrong!