Starting a business

I am finally planning on retiring in September. I will be 66. I have been an LPN for just about 40 years.

I will miss my residents so much. But my husband and I are building a house and pole barn this spring so we're very busy. I want to buy a lazer cutter, preferably one that can also cut metal. I would like to start a small business. Does anyone have suggestions or ideas ?? Looking forward to responses!!!