I think u must consult another psychiatrist and take further 2nd opinion and medicine.
Psychotherapy like CBT are very much help ful to reduce ocd symptoms.
There are various cbt measure for various ocd feature.
u must consult another psychologist Online or offline and take help.
We are always available in practo,u can contact me or any other doctor any time.
Next Steps
Limit ur water usage by rationing ur water for bathing and toilet. U just take one bucket of water for shower.It is also a cbt.
If the emotional causes are deep seated then they have to evaluate and psychoanalysis is also applied with cbt.
Health Tips
Take-
1. Ars alb-200- 2 drops twice a day for 2 days.
2.Bacopa 1x(Schwabe/R.s.Bhargava.pherma)-2 tab thrice a day for 1 Month.
3.Kali phos 200X-4 tab twice a day for 1 Months.