I am sorry to hear how distressed you are - I assume you are talking about fecal Body Odor ?
You do not give much detail about when it started, what your diet is like, what tests you have undergone, or methods tried.
Please do not think of suicide - over the past couple of weeks I have been astounded by the success stories I have seen, as an example:
Two people found that their problem related to their wisdom teeth. Apparently if you have impacted wisdom teeth bacteria gets stored and even when you mouth is closed it can be smelled 10 feet away. Is you wisdom teeth ok?? You can google about this and you will see quite a few stories.
Another person had success when he ran out of his acid reflux medication - the smell stopped instantly - he had not associated the odour with this.
Another person went on a very strict candida diet for 6 months, living mostly on green juices with algae, etc, and he is now odour free.
A female recently posted saying she had been taking rhubarb root, ginger tea with lemon, fruit and probiotics and her odour went away.
Everyone has a different reascon for their odour and you need to try to identify what might be the cause of your underlying odour.
Also have you tried different websites such as Body Odor Support
They have a section on success stories.
Please do not give up hope - I also suffer with fbo, but after reading other people's success it certainly gave me hope.