Reducing from 45mg to 37.5

I have been on mirt for around the 9 week mark 15 mg for 2 weeks and 30 for 6 weeks I then upped to 45 mg for a week but I have found this far to stimulating so I have reduced back to 37.5 as of last night but I have had a bad day of anxiety how long should I expect this to last,just hoping it won’t take long to settle as I was only on 45mg for a week?

When I changed my dose it took 10 days to feel better. I read it could take up to 2 weeks.