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Mentors, having a mentor is very ok, but having a mentor doesn't mean that you should agree with everything he says.
Just as mentoring someone doesn't mean that you should agree with everything, so is I also.
You live a life that you don't have to worry about what is happening or not. You just agree to the life you are living and make sure that you are always putting things in place. Mentors are there to guide you, but they are not perfect.
You can still make mistakes and with your ability of knowledge and your own experience and your sense of judgement, you can still make sure that everything is still falling in place. No matter what.