I know you've played this in Suicide Discussion but I think that suicide is something that should be done by someone in their rational mind and therefore my honest answer is to pick up the phone and get medical help. If nothing is available right now because it's the weekend and you'd rather talk to a trusted doctor, call a friend or family member or someone else you trust. You don't have to explain or go into detail. Just say you're not feeling well and ask to be kept company or to stay the night in the spare room or whatever until you can see the doctor.
And then, whenever that is, be absolutely honest. If you don't think you can be, write it down. Ant experiences thoughts, delusions, voices (if appropriate) - the lot. Nobody can help if they don't know the whole story.
And also have a think about what you expect and want to happen. And what you don't want. And write that down too.
If there's someone you trust who can come along and help take notes or whatever, that's great as these things are really stressful but don't worry if not. The important thing is that you recognise right now what's going on and that you're not comfortable with it and that you don't want it to continue.
I hope you can get it sorted xx