When exactly do Anti-depression and anxiety pills start working???

CoNsTaNcE
Im a cutter have been since 16 im 29 smfh i kno....The other day I overdosed on my sisters pills jus getting out of the hospital Friday and have to got follow up with a doctor tomorrow...ive been put on anxiety and anti depression pills?? Anybody else taking something and how is it working im on Zoloft and im still miserable as ever before how long does it take to actually help me cope with my miserable life.