should i go w/ cosmetology or esthetics school if I want to specialize in skincare and hair extensions only?

I live in Texas, and I want to open a spa and specialize in microdermabrasion, facials, waxing, and chemical peels. I also want to specialize in doing hair extensions (apply, style extension, etc.). Im not interested in nails, or doing perms, coloring, cutting hair, etc., just in doing hair extensions. So far, I know you have to be a licensed cosmetologist to do hair extensions. So which should I go with Cosmetology or Esthetics? Which will you earn more in ?