Translation of decepcionar

I congratulate you on your move to become a private Spanish teacher. People need to believe in you and the most important thing is that you need to believe in yourself. It won't be easy at the beginning.
As promised, I am sending you in the attachment a (very) little overview of some applications we created on Vocabulix. Please send me also some infos about your activities. When would be the best time to talk?
Thank you for the quick response and for your feedbacks. You are absolutely right about the verb 'communicar'. Our verb list section is new. We will add this verb, as well as many other less common verbs.