why-did-I-used-to-X?
The beauty of this question is two fold for one it helps to understand the reasoning why did you use to have a limiting belief: if you can understand where its coming from its easier to root out.
If you understand where its coming from you can use the [Scramble pattern:] to modify your own memory.
The second part of beauty of this question by asking the ‘Why did I used to…’ over and over while figuring out the ‘WHY’ you also re-code yourself that such behavior is already in the past and not in the present.
To follow up on this
You can ask: "Why I dont anymore?"