From Longman Dictionary of Contemporary Englishbe thrown back on somethingbe thrown back on somethingDEPEND/IT DEPENDSto be forced to have to depend on your own skills, knowledge etc Once again, we were thrown back on our own resources. → throw
Examples from the Corpus
be thrown back on something• He was about to be thrown back on the bloody rubbish heap, or worse.• For first time in his life, he was being thrown back on the his own resources.• The result is that they are thrown back on their own individual and collective resources. 