、。
She got so angry that she lost her self-control.
Literal
She [topic-は] very anger [object-を] stood [because-ので], self-control [object-を] lost.
腹を立てる literally 'stand up the stomach' is the standard idiom for getting angry — Japanese pictures anger rising up out of the belly, much like English 'getting one's hackles up.' 自制心を失う pairs 自制心 (self-restraint, self-control) with 失う (lose) — a Sino-Japanese set phrase that sounds slightly weighty, fitting the dramatic image of anger overriding judgment.