Depends on the christian branch you got taught in.

I used to be a roman catholic, They belief that with jesus’ death the primal sinn was absolved. If you accept jesus as the lord the savior son of god, you never will go to hell. Sinning puts you in purgatory, a hell-light kinda, for a duration to punish you for sinning. But after that you go to heaven regardless.

Before jesus everyone went to tell due to the first sinn commited by adam and eve. A few exceptions. Moses was promised heaven if he stayed faithful, but because of his doubt at the end, he got condemed to hell, but was allowed to see the sacret land before he died.