Meditating alone for starter? Meditating too long. Meditating before your day start and you get into stressfull situation.

It should be done step by step, carefully.

I think philosophers talked about habitus, and nowadays we might be able to "fix" phobia with a mix of MRI and reinforcement learning, slowly. Or how to reduce your fear of falling when rockclimbing, by falling "on purpose" when you are in between pitons by an increasingly large length.