Is that you're an extrovert and really crave having other people around to chat to?
Is it that, without a definite plan and commitments, you cannot organise your time, as it seems too unstructured to get hold of and do anything with?
Is it just a 'WTF am I doing here' moment, which will pass?
What are you anxious about? Do you mean directionless, lost and a bit 'WTF'? Or do you mean actually anxious, fearful, physically stressed? Fearful of what?
Six cups of tea is many people's normal. Lunch out sounds nice.
What I would do / recommend, is:
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Do some exercise every day. A run, a walk, a workout maybe but going outdoors will be better.
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Write yourself a work plan / timetable. You need to introduce a sense of urgency, a need to complete one task, so that you can fit in the other. So cleaning in the morning, jobs in the afternoon, or the other way around. Exercise either at the start of the day or in the middle.
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Once you've made some headway with the essentials, start looking up groups you can join, things to do, social activities in the area. Start timetabling those in.
Now, why is it taking so long to find furniture, why do you feel you've been 'given' this time, why are you obliged to do housework during the day (rather than sharing it at the weekend) and why did you move there in the first place?