You should also be aware of how experience penalties work in Path of Exile your character gains unparalleled experience from killing monsters. A number of levels above and below your character level this number is three and increased by 1 for every 16 levels your character has completed, you should not be outside of that margin otherwise it's very easy to fall behind an XP which is the opposite of leveling in POE 3.8. Efficiently, if you would like to learn more about this topic check out the experience page on the path of Exile wiki, this is not a full guide to act 10 or endgame but just a quick step by step instruction on how to set yourself up how to get through act 1 to 3 and to progress into your POE Blight leveling setup, which will be final at the end of act 3.
More Read: Path Of Exile 3.8 Blight Beginner Guide - Top 10 Tips & Tricks For POE Blight League Starters