Live for the convictions you feel, not for the criticisms you fear.
Life is like falling in love: others will offer their arguments and opinions, but only you can know the rapturous sensation of that which brings logic to its knees. That intangible force is your guide.
And even in this, there are no guarantees.
In the end, your heart may still get broken. But what else is there?
One can either live for what he loves or he can pretend to love what another wishes for him to live.
Only the former path can be truly called “living.” The latter road is just a sad and self-negating crawl towards death.