I am good at excel but this is my only skill!

Hi fellow excel users! I am 27 and Job less. I got jobs 2 times all thanks to my one skill that is excel but now market is saturated and everywhere I apply they require bachelors degree which I don't have. So I am stick with excel skills only. Any suggestion how I can use my skills to earn some money??

P.s I tried Fiver/upwork/linkedIn but no luck..
I am thinking about launching excel course (beginner/intermediate/advance) but am confused as already so much content is available for free of cost. Who will pay for course in this era of free knowledge?

Need your suggestions!