This is a nasty little poem.

It's written in free verse, which is always a little bit hard for me to evaluate, but I think you used the medium rather well here because each line is a brief to-the-point idea about how angry or hurt the author feels.

Most of the lines are good and to the point, but I might suggest rewriting a few of them more crisply.

For example:

"Even when that is never my real plan"

could be rewritten as:

"Even when that is not my real plan"

"Despite the anxiety that had erupted in my body"

could be

"Despite the anxiety that erupted in my body"

But all in all, it's a good poem and I think it's interesting that you say it's a "never-ending" cycle.