throw (someone) back on (something)

Translations
заставить (кого-то) полагаться на (что-то)
The failure threw him back on his own resources.
Неудача заставила его полагаться на собственные ресурсы.
Definitions
To force someone to rely on or depend upon something, often because other options are unavailable. For example, if someone loses external support, they may be 'thrown back on' their own resources or abilities.