Things may seem overwhelming at first but they will get easier as you play more. Remember, you're not alone, everyone had to learn how to play. Making notes may help. - Riviat
Over time you will come to notice that certain things depend on each other. For instance, a higher wisdom upon each new level increases the amount of practice points you potentially gain. With more practices it is possible to train more stats and develop your character farther for your current level.
Many players choose to carry gear which can maximize wisdom when leveling.