Method Suffocation with noose and hands bound

[BrainSplatter]

I've failed FSH multiple times how as I've not had enough time and people have intervened or I've used too thin material so it's snapped when I dropped. I plan to barricade myself in and do this but how long would this method take I have no access to plastic bags otherwise I'd add that into the mix too. I also have the option of swallowing glass shards but I know it's a painful slow death and I want to avoid that. This seems like a better alternative if done correctly.