Stressed. How would you go about this?

I’m looking into starting a daycare and a cousin of mine is having a baby in October. We agreed on $125 a week for me to watch her little one. I was planning on charging about 140 for the others since they wouldn’t be family. My cousin reached out to me saying she had gave my information out to a couple of her friends. Now I feel like I wouldn’t be able to charge them $130-140 because my cousin has probably told them she getting childcare for

$125.

How would you go about the situation? I am only wanting to start out with watching a few kids(maybe 3) as I have a year old myself and it’s only been him and I so I wanted him to adjust.

HELP!!!!