Everyone will exist in heaven or hell eternally (Daniel 12:3-3, Matt 25:46, John 5:28, Rev 20:14-15)

Hell is conscious torment (Matt 13:50, Mark 9:48, Rev 14:10)

Hell is eternal and irreversible (Rev 14:11, Rev 20:14, Rev 20:15)

I don't think it gets any more clear than that. You either are a believer, or you are not. As it says in Hebrews 9:27 'And just as it appointed for man to die once, and after that comes judgement', you have a choice to make (free will). The question is, where will you spend eternity?