Nobody here knows your circumstance like you do. I'm sorry you're struggling with finding a reliable method. I do applaud you for trying to do some research at all though.
I do have to say though that again because nobody here knows your situation we can't really suggest methods for you. I also think it's against the site rules to suggest stuff like that. I urge you to continue doing some research to see which method best suits what you have available to you. Once you have 20 messages you'll have access to the site search function.
Until then I urge you to just keep reading these posts:
mod note: this has been added to the suicide resource compilation at the top. This has been made in response to the ever increasing amount of posts made about highly unlikely methods. Please read before posting about one of these methods or feel free to link if someone does post about them...
sanctioned-suicide.net
All the links to threads, videos, audio, downloads, and information found here are being made available only for educational purposes, and have been shared by users; we cannot assure the accuracy of the data. This means the way you use this data is fully your responsibility, that you need to...
sanctioned-suicide.net
And here is a link that sorts posts by the "Method" tag:
https://sanctioned-suicide.net/forums/suicide-discussion.2/?prefix_id=7