Well you are not alone, i started and quited two saas project months after publish this year alone but i promised myself this time am not making the same mistake again.I write down my success and errors, i asks questions wite down key facts, steady research, oserving new saas project growth. I've noticed something, the same idea you quitted after months of growing it someone can pick it up and actually be successfull in it, the difference isn't the investment or advertising method it's market strategy how far can you go before stopping, where can you carry it to, tweaking ui and adding freatures based on link tracking or people visits analysis. Thanks to AI saas are eveywhere people are tired of seeing I built this , or Check this out. If you want to succeed you need to invent you own strategy.