insecuritynoun
us/ˌɪn·sɪˈkjʊər··t̬i/insecurity noun (FEELING OF NOT BEING SAFE)
[ U ] a feeling of not being fixed or safe:
They experienced economic insecurity due to unemployment.
insecurity noun (FEELING OF NOT BEING CONFIDENT)
[ C ] a feeling of not being confident:
I think he's trying to deal with his fears and insecurities.