I appreciate your desire to specialise in English language teaching (ELT) but reading your posts it seems that your level of English might not be suitable yet for an advanced course such as an MA.
You might like to consider starting with a teacher training course at entry level like a TESL/TEFL Certificate. This would cover the basics and help you get a start in the ELT industry. It will also be a stepping stone from which you could further your studies later on. From a Certificate level you could move on to a Diploma level and finally to your MA.
For a clear definitions of the 3 acronyms you might like to check the ICALWiki at
Category:TESL/TEFL - ICALwiki