Our earth will one day no longer stand. All of the items will be destroyed nothing will remain except for God’s word. God’s word will last forever because heaven will stand forever. He promises us eternal life if we accept Jesus as our Savior and live a good life of serving and doing our best to not commit sins. Keep in mind ever when you are saved life will still be hard. Life doesn’t magically just turn into heaven on earth. That is when the devil will try even harder to get you away from God. He will try to make terrible things happen that would make a person question their faith. Don’t buy it. Tell him to get away from you and ask God to give you strength to overcome anything the devil may throw at you.
Don’t give up. Stick with the only thing that will last forever and that is God’s word and you if you follow and believe.