The most important assets for you to bring to counseling are honesty and patience.  This may appear to be a simple or daunting task depending on your individual point of view, but for most people, trying to be patient and honest can be difficult at times.

Patience. 
A counselor needs time to get to know you in order to develop a working relationship such that progress and change can occur.  Changing your life and your way of being in the world takes time.  The foundation and framework for who you are has developed since the day you were born.  Altering thoughts, feelings, and behaviors that have been around for this long will occur slowly but noticeably.

Honesty.  
This is a quality that many people strive to embrace.  However; revealing private thoughts and secrets can be difficult.  In therapy, you are the guide and you have to make sure that you begin by talking about topics that you feel comfortable sharing.  Being honest with others is the first step to being honest with ourselves.

Feedback
Another important facet to therapy is your ability to give feedback to your counselor.  Feel free to bring your concerns to your counselor even if you want to talk about the effectiveness of the counseling.  Most counselors should welcome your feedback and work with you in a collaborative way to improve your therapy.  Remember, it is your time and it is your counseling.