After a dark night comes a sunny day!
When sun sets, moon rises and darkness in the sky can be seen. But moon and stars still guide us till sun rises again. Similarly in our life if we face this darkness, we should look for light in this darkness which would lead us in our path so that we don't lose our way. We should keep just focus on our path. Light from moon and stars will lead us in our path till sun rises again.
Darkness is nothing but its a time when light can't reach us. So this doesn't mean darkness cant be defeated as darkness loses to even a small amount of light.
Lets take it this way. You are lost in a dark cave. What will you do? You will search for light.
Similarly when you lose all the hope try searching for new hopes to reach your goals. Remember when life closes all the doors for you, you should create your own way.
Fear is not an evil. It tells what your weakness is. And when you know your weakness, you rise even stronger than before. Stronger than you ever were!
But losing hope and doing nothing leads to misery. So don't let misery get you!
When you are alone, take someone's help. You are not alone. Someone has always got your back. You just need to find them.
Just focus on your goal. You will achieve them one day.
Have a nice day!