&gt; But this looks like a way too big jump for me. What if I fail? What if the startup fails because of me?<p>Yes accept!  Use that fear of failure to tap into your drive, creativity, and bring your A game. Business&#x2F;Tech Management&#x2F;Leadership are ALL learned and practiced things.<p>Money should NOT be an issue-- go to back to your boss.  Share with him your bare bones monthly budget.  Tell him you need $X just to eat beans &amp; rice and pay basic bills. Can he help cover you during the gap before funding?  Could someone else, say a family member cover you for 6 months? Strike a bargain with him, keep your part-time job for necessary cash-flow, then work part-time on the startup.  If you believe in this guy, the two of you can find a way.<p>Incidentally, you might find Josh Kaufmann&#x27;s Personal MBA a helpful read &gt; <a href="https:&#x2F;&#x2F;personalmba.com&#x2F;" rel="nofollow">https:&#x2F;&#x2F;personalmba.com&#x2F;</a>