Re: CELTA equal to Bachelor's degree?
I have been looking back through the thread. I may be wrong, and I intend no offence, but it appears to me that you are trying to find the easiest possible way to the highst possible qualification. There is nothing inherently wrong about that but, as a non-native speaker in their early 20s, you will not be accepted directly into any DELTA, DipTESOL or ESL Master's course. If you gain a CELTA or CertTESOL you will not be granted any exemptions on a Master's course, you will almost certainly not be granted any exemptions on a Bachelor's course, and you will have to teach full-time for a year before you can be considered for a DELTA or DipTESOL course.
The range of opportunities for non-graduate teachers is shrinking all the time, and for a non-native speaker jobs are virtually non-existent outside their own country. If you are considering a long-term career, then you should be thinking of going to university for a Bachelor's degree in English/ESL or, possibly, linguistics. If the course itself does not include a teaching qualification, then take a CELTA/CertTESOL in one of the long vacations. When you have your Bachelor's degreee and initial teaching qualification, you can worry about jobs, Master's degrees and Diplomas.
If you decide to skip the degree, I must warn you that you will find it difficult to get a job outside Spanish-speaking countries. It may not be easy in those countries.
I must also warn you that CELTA and the CertTESOL are not recognised in Britain, or indeed in most countries, as a teaching qualification for state schools. To teach in those, you need a recognised teaching degree or a Bachelor's degree plus a post-graduate Certificate in Education (a one-year course).
Context is always important; labelling is rarely important.