For working in a diplomatic service you must be fluent in English language. it is the general qualification. But, the requared qualification and the mathod of recruitment are depend on the country. In my country Sri Lanka you should have a  university degree apply for the diplomatic mission. Then a compatative examination is hold and follow by a systamatic interview. Anyway you can achieve your target by a proper plan. I think now you in the right track as you have joined the italki to improve your English knowledge.

revising in a very short time after lessons makes people understand smoothly what they learnt.But, few people follow as it is and they develope things well. If It is not used regulary things your are learnig you must have rivise  to grab. It is good to memerise the previous lesson before going to next one.

Good article. help me lot to improve the fasion of writing.