Eat healthy, meditate frequently, practice mindfulness compassion and humility. If you want to go at it as a wizard, there's the daily ritual regimens to raise it as well.
>lesser (or greater) ritual of the pentagram (invoking at wakeup AND banishing before bed)
>lesser (or greater) ritual of the hexagram (invoking at wakeup AND banishing before bed)
>liber resh vel helios 4x per day
>middle pillar ritual 4x per day (follow up resh with it)
>rose cross ritual 2x per day (follow up lrp/lrh/grp/grh with it)
>bornless ritual 2x per day (follow up lrp/lrh/grp/grh with it)