Rule reminder
Tonic pronouns (me, te, lui, lei, noi, voi, loro, sé) are required after prepositions, for emphasis, after comparatives/come/quanto, and as reflexive 3rd-person. Unstressed pronouns (mi, ti, ci, vi) are WRONG after prepositions.
Non vuole che nessuno la aiuti — vuole cavarsela ___. (by herself)