Might I ask what is taking up most of your time getting your concept to fruit? Is it the programming? Marketing? It's been said here so much it might as well

Might I ask what is taking up most of your time getting your concept to fruit? Is it the programming? Marketing? It's been said here so much it might as well be on a stone tablet: 30 isn't too old, but I totally understand that such a milestone can put irrational pressures on someone. Trust me, I know. As for your other dilemma, your fear that others might catch on to your idea and beat you to the punch. No one can guarantee a surefire hit. Lord knows there's been a ton of those that ended up being total duds. Consider this though, an idea that's sat on is an idea that's wasted. Don't let the threat of competition scare you off. If you've got a great idea, it will remain great even if others are doing it, and if yours is better, people will come to you. I've sat on a few ideas of my own for lack of time and technical help, only see other people start their own version of it or another. I think mine's still better, but seeing others attempt it gave me a bit more confidence in the viability of the idea, and a kick in the butt that I gotta get moving. Don't be afraid to find the right people to work with, sometimes it's a trial and error thing, but don't quit.