I played the last time with the Levelup mod and reached whopping level 8. The mod worked really well for most classes (warlock had a bug, where you were able to select 8 spells at level 7 or 8, but since you mostly use Hex and Eldritch Blast anyway, that didn't botehr me too much)

"We are all stories in the end. Just make it a good one."

Doctor Who