Why are you worried you wouldn't be good at dog grooming? Have you groomed a dog before? Did you do a good job?
I know that in my entrepreneurial journey I’ve done stuff people told me I should Not what I actually enjoyed in a manner that I would enjoy it I’m pursuing what I actually enjoy in a manner that I would enjoy and it’s been the most enjoyable experience thus far
Write down as many things that you can think of in the three categories: What do others say that I'm good at? What do I like? What would people pay me for? After finding these, look for the similarities and then start there.