What type of education do I need to become a counsellor?

It depends on what type of counselor you want to be. Counseling is a broad term. You can be a counselor in schools, non-profit organizations, clinics, military, hospitals, etc. Your population can vary depending on setting and preference. First, I would start by exploring what setting would I like to work in and then what population you would like to work with (youth, elderly, military, substance abuse, etc.)

Dont want to discourage you however what type of counselor do you want to be? Marriage and Family--which will mean working with adults. Alcohol and Substance abuse in a hospital or out patient program or in organizations doing prevention.
do you want to work with children in a school-mainstream or special educaiton.

All of this is to bring up questions to narrow your search. If you are not sure then check out all.

Good luck!

Your question needs a bit more focus. Example: Guidance Counselors work in high schools and generally have a degree in Education. I suggest that you explore the web site of the American Counseling Association to learn about the options for credentialing (think licensure). Those with social work and psychology master's degree may qualify for the "Licensed Professional Counselor" (LPC) credential depending upon the coursework completed AND the state in which the person wishes to practice.

Good luck finding a career path that is suitable with your heart's desire!