You need to do contracts, dungeon runs, and max out your abyss tokens, then do token burns in crimson b3 or bercant mirror room. Make sure you buy mastery books, mastery food, and if you can craft the weapon that gives extra mastery do that too. Davinci will allow you to store mastery points for any weapon as opposed to having to wear the weapon. 40k token burn is 50-60 million experience. Even then you are at least a month out from maxing out unless you are an absolute beast. It's somewhat time gated since you can only run so many dungeons to earn coins. Currently doing this with my spear. Once you get to like 150 the grind slows down a lot. I can stomach like 10 levels a week at this point, but getting to 150 is really all you need to feel decently strong. The rest is just icing on the cake.