Replace "Have to" with "Want to."
For good or ill, your habits will make or break you.
Spend time cultivating your deepest desires, no matter how impractical or impossible they seem. It's perfectly OK to want the impossible. It's not OK to pretend that your desires don't matter.
Your beliefs about reality become your beliefs about yourself.
When in doubt, act boldly, as if it were impossible to fail. In essence it is.
It should feel genuinely good to earn income from your blog - you should be driven by a healthy ambition to succeed. If your blog provides genuine value, you fully deserve to earn income from it.