Giving money to homeless people

I have Schizophrenia. I had a psychotic break where I felt spiritually obligated to give money to homeless people.

I typically give $200 every month. I withdraw that amount in 20s and 50s and distribute the money to people who are bartering for money. I live in a city with a lot of homeless population.

This month I am going to give $300. I know this isn’t a ton of money but I was simply wondering how much I should give? I don’t know if giving more people smaller amounts or less people larger amounts will be better.