thechaos
id personally have Percy learn as many languages as he can so that his mental stats increase further which will help his energy consumption while you really should focus on Percy's overall regeneration on health and energy energy wise have percy condense his energy further and make it a skill energy condensation basically making Percy have a higher amount of energy than before think cultivation novels
id go back and take one of the casino cards since they are literally unlimited money and he could use that to 1 fund buying books on so many types of skills and 2 it can help Percy's mom live an easier life 3 I was thinking it would become a perk and store all his money but also make him get a massive loot drop increase for money