Usage patterns
〈人〉の支えになるto become someone's support/pillar
She has always been a support for her family.
支えを失うto lose one's support
After losing his father, he lost his means of support in life.
支えを求めるto seek support
When you're in trouble, it's okay to seek support from those around you.
精神的な支えemotional/psychological support
My friend's words became an emotional support for me.