Far be it from me to judge anyone who contemplates suicide, but I would make the following observations.
1. There is much evidence indicating that what you call 'self' today is transient and subject to change. Failed suicides often become grateful they did not succeed.
2. Unless you are a 'religious believer' ,what you call 'you' simply ceases to exist after death and therefore cannot
experience 'peace' or anything else for that matter. (Of course Christian believers, for example, would be automatically classified as 'wrong' since for them, 'life is sacred')
3. Those who even consider the judgement of others, actually lack the independence of action they claim. That is why threats of suicide are often disguised 'cries for help'.