Sounds like you know what's important to you (family/dad), sounds like you know where you want to be in the near future (back in Italy) sounds like you know what you're good at and can earn a living with (teaching guitar), sounds like you know you want to do in the future (help people, learn about spirituality), sounds like you know the problems you are creating (overplanning), and sounds like you know what you need to be doing right now (focus on your studies and see what happens).
So my advice is, follow your own advice! Trust yourself, stop worrying about things too far in the future, and enjoy the now.