I guess I am not very good at talking about things. I tend to keep things bottled up within myself.  I've been doing that for as long as I can remember.  It resulted in a huge emotional breakdown at the end of 2004 afterwhich I was out of action for about 9 months
While I was coming out of it I am told by my wife that I was able to talk easier and it was great for her.
Since then I have reverted to bottling things up again.
Sometimes, when emotions are high, I can feel the dam wall is near to breaking again.  I can't let that happen again so I have to force myself to close up again.
It just a never ending circle!
How can I break free?

You might find it beneficial to join a gestalt group in your area.  That's where people get together in a circle and discuss their problems with others, albeit strangers at first.  

"The phenomenological-existential therapy known as gestalt therapy sees awareness as its major goal. Clients are helped to become aware of what they are doing, how they are doing it, and how they can change themselves while, at the same time, learning to accept and value themselves.

"An important topic in the gestalt group process is the key concept--a concept that defines members as unique individuals and social beings. In addition, there is affirmation of and belief in each person as a potentially healthy person with all the necessary equipment to live a satisfying life.

"The group leader is valued for an ability to work at both the individual and group levels and to move smoothly back and forth between the two levels. The most basic technique in working toward awareness is simple observation. Other techniques used in group counseling with gestalt therapy include awareness experiments, unfinished business, exaggeration, reversals, making the rounds, fantasy approaches, and rehearsal.

"Gestalt therapy has proven to be effective in time-limited situations. It is applicable to a variety of problems and is used with children, adolescents, and adults. It provides a perspective on growth and enhancement while focusing on current behaviors. Group members are given the opportunity to do their own seeing, feeling, sensing, and interpreting..."

Look up "group counseling" in your area code.   From my personal experience, people DO cut loose during Gestalt Therapy exactly because they are used to keeping things bottled up.  They hold nothing back, so gestalt therapy is extremely intense.  More often than not, you'll find people with whom you identify.  You'll see how they express themselves.  Then you can get a sense of how you should express yourself.  

Granted, you may see and hear things from people that seem completely "wrong."  But the real reason that everyone is there is to vent their inner turmoil because they also have a sense of what's completely "right and wrong."

The final result from all that venting is that everyone has released that emotional "pressure" that needed releasing.  Sometimes it also helps us to see our situation from other perspectives to have a true grasp of our reality.  That's what gestalt therapy is for.

I hope that helps.

Healing Thoughts, HealingMindN