Zoloft withdrawal can be unpleasant, but it is not known to be dangerous to one's life like alcohol or benzo withdrawal.
Not everyone gets withdrawal symptoms (studies say around 60% get them and for many people it can be relatively mild) and they can be largely reduced or even avoided by tapering off gradually instead of stopping abruptly. Even a quick taper over the period of a week would be better than no taper. You should really talk to your doctor about stopping though.
Common symptoms include: weird skin sensations, dizziness, electric shock-like sensations or "brain zaps", insomnia, restlessness, sweating, nausea, emotional instability, depression, nightmares, headaches, and generally feeling weird or "off". But many people do not get all of these symptoms. I don't know how long you were taking Zoloft? That can be a factor. When I came off an SSRI the withdrawals were pretty mild for me, the things I noticed most was feeling kinda weird, a bit dizzy, brain zaps, and awareness of heartbeat, and these things were not constant and didn't last all that long. But if you got horrible withdrawals in the past, maybe you are more prone to them. Just in case you do get bad withdrawals or feel extremely depressed, hopefully you are in a situation where you can see a doctor pretty quickly?