Oh, cheer up, my insectile chum.
Like I said before, some are just naturally more inclined to write than others.
But if you put the general idea out, I can help you with it, and perhaps after reading the edited product, your idea flow will come out later in a way you can feel proud of.
You don't have to be a Hemingway or a Golding or a Twain or a Poe. None of US are. Just write to the best of your ability, and if it flows with the rest of the story, but lacks in grammatical flow, I'll help out as I can.
“…Judge not what a man has done, but judge what he could have done if he was a different bloke altogether. For art thou a leper? And a leper can changeth his spots…” --Rudy Wade, Misfits (Series 4, Episode 8)