your problem is complex
my solution ideas

first if you can visit a 2 weeks holiday to east asia,east africa ( a country completely different from your living place( people,culture, food,economy)
this will greatly inpact your mind and a temporary relief from stress

- spend at leats 2 houser per day out door ( i know its hard but do it ) and increase the time
- try to make friends
- maintain a OCD diary


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