I have been in the same situation as you for many years. 5 years ago I tried a different approach. I created a POC, some slides about the tech and recorded my screen while giving a demo of the software. I sent it out to about 20 people in my network and asked them if they knew someone who was willing to partner up with me for the sales/marketing part. Some people contacted me, 1 was interesting for me. After weeks of talking he paid me €10k and put 10k in the company. I gave him 50% of the stocks and made him CEO. Best choice of my life.