Introducing myself and asking some questions

Hi PH fam! I'm Avhijit , a software engineer by profession. I'm also the founder of a greentech startup called HydroPlas Tech that's researching on producing graphene from waste plastic. (https://hydroplas-tech.web.app/) I like to dabble my feet across different domains, ranging from software to electro-mechanical systems. Recently I've been participating in a couple of hackathons. As a result I've created 2 SaaS products which I'll be launching on PH sometime early next year. I'm really exited to be on this platform and more than the prospects of launching SaaS products, it's the amazing and supportive community here that captured my attention to join PH. I would love to make many great connections here, so please feel free to reach out to me🙌 Now comin to the question part, to the people who have considerable experience being on PH and in SaaS development, what are some of the learnings that you can impart to a noobie like myself who's just starting out in this domain? What are some strategies to evaluate whether an idea is still worth pursuing or to drop and move on to the next one? How to not over focus on tech but also divide attention to marketing? Thanks, looking forward to make great connections along the way😄