Heaven is big enough to accommodate everyone if the whole world decides to go there. On the other hand, hell will enlarge itself and open its mouth without measure to house everybody who chooses to make it home. The will of God is for all to spend eternity in heaven with Him. However, the choice is yours to decide where you want to spend eternity.
Let us learn to live one day at a time. The thought of tomorrow: what to eat, drink or wear has cut short the lives of many people. It leads to anxiety and worry which can result in stress, hypertension and sometimes even death. Do not worry, tomorrow shall take thought for the things of itself. Worrying about tomorrow is pointless because you may not live to see it after all. God supplies His children with daily grace. The grace to face the challenges of tomorrow will be provided at the right time.
Are you concerned like Peter, about what you will gain having left all to follow Jesus? For your information, your labour is not in vain in the Lord. The Lord has promised to reward you now, with a hundredfold of whatever you have given up serving Him, and to give you eternal life in the world to come. All you need to inherit these promised blessings is to be faithful and committed as you serve the Lord Jesus Christ.
There are many Christians whose hope are not beyond this life, for they serve not the Lord Jesus Christ, but their own belly. Such people whose hope in Christ ends here on earth should be pitied, because they are of all men most miserable. Their suffering in hell will be worse than those who did not believe in Christ, namely Atheists, Muslims, Buddhists, etc. Irrespective of what they are doing for the Lord, they are wasting their time.
There are two highways: the broad and narrow way, each having specific destination. Travelling by the wrong highway will take you to the wrong destination. For example, the highway that goes from Bethel to Shechem will not lead travellers to Jerusalem - Judges 21:19. It is the narrow way or the highway of holiness that leads pilgrims to the dwelling place of the holy God - 1 Peter 1:15-16; Hebrews 12:14.