You will not throw away hope with your hands until you will die.

You will not throw away hope with your hands until you will die.

The light of the lighthouse will be disappearing.

You could also say "The light in the lighthouse will be disappearing."

You will stand up again like a violently undulating wave.

You could also say, "You will stand up violently like an undulating wave."
You could also say, "You will stand up like a violent, undulating wave."

You will not throw away hope with your hands until you will die.

You could also say, "You will not throw hope away with your hands until you die."

I will go to your hometown so you are not alone anytime.

This sounds a bit odd. You could say, "I will go to your hometown so you are not alone anymore." Or you could say, "I will go to your hometown so you are not alone at anytime."

You don’t have to win, and you will not lose.