What is pre-seed? I will not promote

Maybe a bit of a rant or vent, but I’m also just generally frustrated because I don’t understand the pre-seed and accelerator options. I have built a real product. It works great. Not an idea. I feel I have to say this because each time I meet with people they are shocked at the product maturity or that it’s more than an idea. I have users. Real people/patients. It’s a patient facing product. They like it. The thing works great. I try to apply for accelerators and VC projects for pre-seed companies and each time I get rejected because I need more traction, cofounders or people working with me, and a better business/monetization model (going direct to patients is what I recognize [saas] is a extremely difficult path). I recognize these things. I knew going in. But my interest in joining an accelerator is getting some help on the different pathways/monetization strategies. I also hoped to find cofounders or support in gaining more traction with partnerships that can open marketing channels. But these rejections make me wonder, who am I supposed to ask for help? If I’m solo, I have pilots getting worked out with large patient groups, I have real users signing up each day through word of mouth, but if pre-seed options all want more traction, what’s before pre-seed? I’ve met people who are founders and have only an idea getting millions, many more getting thousands in investment and support. And they don’t have any users, any product, or any traction at all. What am I missing?