First, I don’t think you’re going to find many subs that are going to be pro-suicide. Second, you should know that most countries / states where euthanasia is legal it is usually granted only to people that are considered to have terminal illness (which asthma is not) and require both patient and next of kin consent. Lastly, as an ICU nurse, I feel I should warn you that more people who take matters into their own hands than you would expect fail in their attempts. I’ve seen failed self inflicted gun shots to the head several times. These people usually go on to live in rehab facilities living a very low quality of life. My point here is you’re going to have a much better time trying to work this out in therapy than trying to find suicide advice on reddit. I apologize if this comes off as confrontational, as it is not meant to be.