You seek an illusion. Freedom does not come with having your own business - you work for all your customers instead of just one boss. You have to do everything - you can't palm the messy, horrible parts of the job off to someone else.
You do get the freedom to not make any money even if you do a lot of hard work.
Think it through. work out what it is you like about your work, and what it is you dislike. Think it over and work out if there is any "business" that you can create that does this work, and that pays a living. Think also about whether your work could be done a different way that would make you more satisfied (there might be scope to give some things away to someone else in return for taking on things they hate doing, but you don't mind).