We need spiritual food.
We need the Eucharist. The Eucharist is spiritual food for the journey.
Read the Scriptures daily, even if it is just 5 minutes. Without reading scripture, you are going to battle without any sword.
We need to be obedient to the Lord.
The Lord wants us to reach the mountain top. He gives us everything we need to make it to Heaven. We need spiritual strength to make this journey.
Whatever trials, sufferings, and pain we endure during this life will be worth it when we reach the mountain top. Whatever we will see in Heaven is beyond our comprehension.