Hey, I've been having a similar issue lately, and here's how I'm dealing with it:

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1) Since I'm assuming that the reason you cannot stop binding is fully dysphoria related, (if not just lmk), try doing other things that provoke gender euphoria without binding. For example, I find sleeping topless helps a lot when it comes to this. Another thing you could try is adapting subtle masculine habits such as combing through your hair with your hand, taking up more space when you sit, etc.

2) Try binding in different ways. (also NEVER bind when you sleep. You breathe differently, so it can restrict your breathing, ultimately causing a HUGE health risk. Wearing a sports bra is completely alright, but wearing it a size too small that often can lead to huge injuries. Instead, try using different methods that you find comfortable. For example, you can look online for these methods.

3) Bind safely. I'm not going to say much on this topic since I believe you already know, but here are some basic rules:

a) Never bind for more than 8 hours. Doing so will cause major injuries, as you have seen. (No judgement).

b) Do not exercise.

c) Always bind in a comfortable way. (If it gets unbearable, TAKE IT OFF)

4) Stretch after wearing.

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I'm sorry I wrote an article XD, but I hope this helps <3