how do you debate with someone who was better educated than you

sometimes i get frustrated, because i have reasonable intellect and intelligence but i missed out on my education because i dropped out of schooling, i had learning disabilities too, and when i encounter someone who was better educated and they are debating with me..i often can't think of the words i want to use and also, i don't know a lot about much things so have nothing to really come up with in my argument for the debate? so i get all frustrated and annoyed, as the other person is doing better than me in the argument, writing paragraphs at me and i simply don't know what to say?

i know in many cases those who have a lot to say and get on their high horses are just ''empty vessels'' and empty vessels make the most sound, as it is said.. but it is very frustrating none the less, whenever i encounter this situation.