Hey man! Good to seeing you hoping to learn English yourself and becoming a great writer someday; I hope whatever it is that you want to achieve is invariably always in your feet and in your arms! It is extremely good and always nice to see someone aiming to get knowledge regarding literature and English itself.
Trust me brother, you will become a great impact-full writer in the coming years in no time! That is my prayer for you! Now since that is out of the way, I would like to ask you a few questions:
A) What exactly would you want me to write for you, when you say 'article writing'?
B) What would be the deadline of 'each' article that I would supposedly write for you?
I'd be very thankful for you if you'd pick me out of all the bids and give me a chance to help you in your struggles as a writer! I would also be very glad to help you in these 'tough' projects that you perhaps talked about.
That's about it and thank you for taking the time to read this lengthy proposal, looking forward to work with you my friend!