If you don't believe in God, it's not because you lack evidence; it's because you lack desire. You are surrounded by evidence, but all the evidence in the world falls flat to the person who refuses to listen. Hell is the alternative for those who don't want God, as Heaven is God's home; therefore, they are a package deal. If you don't want God, Hell is the only place you can exist without Him. If only people would realize how awful, tormenting, and isolating Godless places are. If you're okay with Hell, then you undoubtedly have no idea what Hell truly is.
The bible speaks of Hell as a pitch black place in outer darkness (Mat. 8:12), where weeping doesn't stop, and bitterness is ever-consuming. The worm doesn't die, the fire is not quenched (Mark 9:48), and your sentence never, ever, ever, ends. 100,000 years in hell endured 100,000 times does not even register with how long eternity is. "The smoke of their torment goes up forever and ever, and they have no rest, day or night" (Rev. 14:11a).
You were not meant for hell, it was a place set aside by God for Satan and his demons (Mat. 25:41). God has no desire for anyone to go to Hell (2 Pet. 3:9, Eze, 18:32), but if you want nothing to do with Him, Hell is the only alternative, for it is the only place void of Him and His blessings. Therefore, today, call out to Him! Don't delay. The rest of eternity for you may start any moment, and where you land is determined by what you decide now.