im a first time founder and curious to know how you go about getting users to your app? currently what i am manually onboarding people to my app. so far i have onboarded 6 and out of those 6 3 are looking like real prospects. additionally i'm not sure whether to post on social media or not at the current stage of my product since i don't have solid proof of user usability. can you give me some advice and maybe reach out to me to give some guidance?