Before we start reaching out towards others to instruct them based on our own ideas, opinions and analysis of what’s happening it is a good idea to first get to know yourself, get to know your own negativities and how you buy into your thought processes.
You should really look at the teacher closely. Take all the time you need and don’t do anything unless you have to. Once you make a commitment, stay with it and give it the benefit of the doubt. Having doubt is part of the dynamic. It is space that you disagree with; a not knowing that you think shouldn’t be there. A little bit of doubt is valuable. It is certainty if you do nothing with it.
When establishing an awareness practice one can attempt this without a teacher. However, this often leads a person to a dead end or to what Chogyam Trungpa Rinpoche calls a Spiritual Supermarket. Sokuzan discusses further in regards as to when you may need a teacher.