The most difficult thing in a startup is whatever your next big hurdle is. Ultimately, yes, you need to build something people want - a lot. But there are a s

The most difficult thing in a startup is whatever your next big hurdle is. Ultimately, yes, you need to build something people want - a lot. But there are a series of hurdles along the way ranging from finding a co-founder/team, building the product, raising investment, acquiring users, monetization, etc. I always used to think that future problems are good to have. It's true that they're good to have since it means you've crossed the previous hurdle. But they're just as difficult, if not more difficult, than prior hurdles. This is why the mental model for startups is so important. You really do have to be relentless despite the numerous hurdles which will be placed in front of you.