"We are confident, yes, well pleased rather to be absent from the body and to be present with the Lord." II Corinthians 5:8
"For we must all appear before the judgment seat of Christ; that every one may receive the things done in his body, according to that he hath done whether it be good or bad." II Corinthians 5:10
Those two verses tell me exactly what happens after death. Our soul (or our thinking brain), our conscious mind will live on after death - the Bible says so in many places of both the New and Old Testaments. To the ones who believe that the Bible was written by mere men, II Timothy 3:10 explains: "All scripture is given by inspiration of God, and is profitable for doctrine, for reproof, for correction, for instruction in righteousness" Later on in chapter 4 of the same book, verses 3 & 4 it says: "For the time will come when they will not endure sound doctrine; but after their own lusts shall they heap to themselves teachers, having itching ears; and they shall turn away their ears from the truth, and shall be turned unto fables."
We are seeing those last two verses taking place before our eyes. This has been happening for quite some time, getting worse and worse, just as the Bible predicts. The results are that people believe what feels good and what they want to believe will happen; they discredit the Bible as a fairy tale so they won't have to take responsibility for their actions. Folks, I might believe the sun is green, but that doesn't make it so. Likewise, believing there is no God, no Heaven, no Satan, no Hell just does not make it so.
The Bible also warns against false mysticism in Colossians 2:18-19 and warns against asceticism in the same chapter verses 20-23. We also learn that God is not a respecter of persons and whosoever will call upon the Lord will be saved. There are only two classes of people on this earth - they are not black, brown, yellow, white, they are not blond or brunette, they are not the rich or the poor; they are the children of God and the children of Satan. I may sound harsh to call everyone who is not a born-again believer, a child of Satan; but I am not calling judgment, only showing those who are not born again that they can come to Christ as their Savior.
Going along life's merry way and not caring either way does not make you somewhere in the middle - even as a very good person - you are still Satan's child because you did not choose to be a child of God. I am saying all this to let you know that there is more after death and you just don't go into the ground as dust or get reincarnated to some other life form until you become perfect. Adam and Eve were created as perfect as a human could be and then humans went downhill from there, humans are NOT improving.
Your soul will live on either in heaven or hell. The choice you make before death results in where you will spend eternity, there is no chance to change your mind after you die. Do not put it off; you do not know if you have another breath. Hell was made for the devil and his angels; it was not made for man, sadly many choose to go there because they do not want to serve God or acknowledge that He exists. Humans are vain creatures and many choose not to become Christians because they will lose their friends or because their friends will make fun of them in some way or another. You might check the book of Luke if that is your reason (Luke 16:19-31): the rich man was in hell begging for someone to go tell his family so they would not come to the horrible place called Hell. Even someone who was in hell already wanted to keep others out; he knew it was too late for him but he would be a willing evangelist if he were allowed to be.
What your friends think does not matter and anything that you might have to give up in the life you are living is nothing compared to what you will gain by being a Christian for the remainder of your life and what is waiting for you in Heaven. What happens after you die; well, that is up to you; please choose, "...behold, now is the accepted time; behold, now is the day of salvation." II Corinthians 6:2b.