The Experience mod is a fantastic mod that replaces xp by leveling up skills with a more conventional method. What is this more conventional method, you may ask? Well, with this mod, you gain experience by killing enemies, reading books (I have to check if this includes using spell books), discovering locations, and completing quests. This also removes the need to make skills legendary to increase your maximum level, and increases your max level to a massive 255 by default. All of these can be configured via the mod's .ini file (Experience.ini). I will have what setting I personally use under the read more link. The link to the mod is here. I definitely see myself using this mod continuing forward.
My settings for the .ini file. This is my personal preference. To change the settings of this mod, open your mod folder (if using MO2, right click the mod and then click "open in explorer", and then go to SKSE, and then plugins, and the Experience.ini file should be there when you open that folder. Make sure your game is close when you make these changes. Make sure to save the file after making changes.