Ignore the doubters. The haters. Especially the ones that are voices in your own head. None of them have the power to stop you. Anyone who says "you should give up" is merely revealing the truth. The truth is that the power to give up is within you and you alone, as is the power to keep going.
You have the power. All of it. And you've got this.
Not even failure cannot stop you. Nothing has the power to stop you, as long as you persist. All the power is within you my cousin.