But since now my English is still not good enough. I also want to learn more. I would have been extremely beneficial to me and if you can help introduce and fix the errors in my English writing.
But now, because my English is not good enough. I still have to learn a lot more. I would have been knowledgeable and helpful to me, especially if you recommend, and fix errors in my English writing.
But because my English is not good enough now, I still have much to learn. I'll get the knowledge and me helpful if you introduce and correction of errors in writing my English.