Hi viento, I think the feeling of the majority here is that if you want to really be true to yourself and keep your mental health, you should stop studying with the JWs. Period. However, I can very well understand your desire to continue to study and find out for yourself if that, what is said here, is the "Truth about the Truth". If that is the case, make sure you make a good investigation before committing to anything.
The problem is not that people who become JWs are bad, the problem is that, in their case, it happens what a wise man once explained: "Man spends half of his life searching for the truth and, once he thinks he found it, spends the other half defending it agains all odds" and it doesn't matter if that truth is a fantasy, he'll still defend it against everything. It turns into an "ideology" and "dogma" which I define as follows: dogma - as the result of what other people thoughts and conclusions and Ideology - as doing what you are told regardless of what is right.
You are your own individual, and if you feel the need to investigate for yourself to be able to make an informed decision, go ahead, it's YOUR right. However, make the investigation like a judge does, listen to and weigh both sides and only then make a decision.
You have a BIG advantage, you're not a JW yet, you're just studying, which actually puts you in a very advantageous situation, because you can ask lots of questions.
By the way, what is your first language? Is it spanish? Given that viento means wind in spanish, just being curious.
vivalavida