Your logic is faulty. In your present environment, where you are doing better due to having some support, you feel like you are a fraud. Yet your assessment found you were unable to manage your nutrition, hygiene, and household chores. So, even with support, you still fall short occasionally. Hence, no fraud exists.
Relax and enjoy life. If the government were about to kick you off supports, then you'd really have something to worry about.
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A finger in every pie.