&gt; <i>...I&#x27;ve never been more convinced of anything in my lifetime actually.</i><p>Any time you feel like this, assume it&#x27;s self-delusion because it probably is.<p>Stop worrying so much about failing and just expect to fail a lot, then it won&#x27;t seem so scary. Launch this thing. Try to make it work. Then work on something new that genuinely interests you more. Follow your interests and work hard.<p>You are going to fail, but if you don&#x27;t give up, you are also 
going to succeed.