"Im tired of doing work for clients"

A business by definition means that you will have to deal with clients. Sure, it could be a product or service or a mix of both but you can never get rid of clients. Otherwise you have no business.

The only exceptions are the types where you run a profitable blog, online courses, ads and make money through those but even they require dealing with your clients at times (e.g. buyer of a course) but the interactions will be limited and much less demanding.