This is a searchable and complete list of Sims 4 skill cheats. To enable this cheat, first open the cheat cobsole by pressing Control Shift C and testingcheats true
The skill cheat command is Stats.Set_Skill_Level skill level. You need to input both the skill name and level. For example, Stats.set_skill_level major_handiness 7 will set handiness to level 7. The cheats below list out all the possible skills and their max levels. Note that the skill name is different for fitness, children's, toddler's, and minor skills. Search the list below for the exact syntax. If you do not want to max out a skill, replace the level with your preferred skill level (this can range from 1 to 9).