It is OK to be stuck for a time-----remember, it took a long time for you to get to the place you are in now, and it will take a long time, and small steps, trials, and self-forgiveness to move on---sounds like you have a thoughtful, supportive T. ((((((((hug))))))
Childhood abuse is especially difficult....it becomes to much a part of "you" it is hard to tease out your self from what others did/said/defined you as.
All important work takes time, and repetition. I remember being blown away (not for the last time) by attending a retrospective of a great artist---the number of sketches, painting, repetition of painting was overwhelming....I know some great poets who spent years on a single poem....it is OK to take time and to get stuck----I think this culture makes us think you can "Just Do It" and all will be well. ((((((((big hug)))))))