Give it a try and then quit the ABA if you don't like it. You might be pleasantly surprised. There's a big difference between a therapy chosen by an adult for themselves and which can be withdrawn from any time, and something imposed on a helpless child.
You might even learn some techniques you can use yourself, such as "chaining" new behaviors with established ones, or delivering little intermediate rewards to increase something you want to acquire. Or it could be as simple as snapping a rubber band you wear on your wrist, every time you see yourself doing a behavior you want to reduce.
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A finger in every pie.