Never take your primary source of personal worth from a job. Get out of that mindset as soon as you can. In most companies like that you’re fungible in a moment’s notice even if they tell you they value you. As for non delivery, everything we build loses money because it’s built on a guess and doesn’t work properly because it’s designed and built by idiots. Do not listen to the people here doing 90 hour weeks on a startup. That’s insane. I manage about 6 hours a week :)
What they do provide you with is income. Save money so you can afford to lose a job first. Security helps. Find meaning outside work with that income. That is your purpose. And it probably shouldn’t be another let’s just do a side project at home and do another day of work. It should be social in some way.