You could keep your rates a little bit lower to attract clients and get started, but please make a contract with clear policies and as the ladies already mentioned do get your CPR/first aid updated at the very least. Keep all your receipts as they are all tax deductions, even the CPR training.
I started at a low rate because I am a Mom/Grandma and that was the experience I was drawing upon, but I found out that I do a fantastic job running my daycare and don't need an ECE diploma, just common sense and dedication to my business.
Once I had a good client base in place so that I had fantastic references I was able to raise my rates slowly $2/year or so until I was in a better range after a few years. My clients didn't bat an eye because they were happy with me.