You already know more about avoidant attachment than most people alive. You have read the articles. None of it stopped you rewriting that message eleven times.
That is not a knowledge problem, and more information will not fix it. Knowing why you do something and being able to not do it are different skills, and only one of them is taught anywhere. This is the other one.
Inside: an eight week programme, one video and one worksheet a week, about forty minutes. The From Anxious to Secure guided journal, 87 pages. Ninety journaling prompts sorted by how you feel rather than by week. An emergency kit for the nights that are actually bad. And a separate track for healing after a relationship that involved manipulation.
You are not too much. Anxious attachment is not a flaw in your character, it is a pattern your nervous system learned. It made sense once. It can be unlearned now.
Education, not therapy. Read Start Here first.