In the US, those arent criminal records.....& medical records are completely confidential......I don't remember honestly how many times I actually attempted suicide......& no one knows about that unless I choose to say something to them about it.......& my psychologist that I have now (I moved 2100 miles away from where I lived when I was that depressed) she knows about that past, but also knows where I am NOW & we are discovering more & more the reasons behind why I was that was at that time & I am free from that trapped situation.
The record that you can't have a gun in the US after attempting suicide is only for a couple of years (5 at most).....then it's no longer available......so I can attest....it doesn't follow you at least not here in the US like you seem to think it does.
Yes, the experience & circumstances around the situation will stick in your memory for probably the rest of your life....but even that will fade with the years also

......it's really NOT as bad as it actually seems to you....but I know it can feel that way anyway.