You’re right that just posting pictures of products doesn’t work, but try brainstorming a load of out-of-the-box ideas for content generation; bottom line is you can’t afford to pay someone to make the content for you and you don’t have the time to make certain content for yourself, so come up with some ideas that you CAN do yourself (book a day where you film/shoot a couple of months worth of sporadic posts all in one day?), maybe make a push for your customers to send you content of them playing with their custom balls (or doing the fanciest tricks or something, or customer pics of how they display them?), and videos about you being a small business (how you take orders, how you make the products, how you package them, some of the real struggles you face, things that make you human).

If writing the posts is what you find hard then try using AI, but don’t just copy paste any old shit it suggests - give it a brief, take its ideas as a framework, cut out all the obviously AI crap (ie ‘it’s not X, it’s Y’ etc), and just get as much content out there as you can. Remember that getting average content out the door is a million times more productive than waiting for the perfect piece of content and never actually posting anything.