I had a magic mushroom trip over a decade ago that got rid of that. It was a strong enough trip that I dissociated from my ego (or whichever one has the sense of self) to the point where I could remember my life but had trouble relating to it. Experiencing consciousness without that emotional connection to who I was allowed me to accept the temporal nature of my current identity.

At death, there will either be an end to my consciousness but I won't know it, or there will be an end to my current me and my consciousness will continue on to do whatever. I hope for the second option, mainly because I'm still curious about a lot of things and hope that there's a chance to explore or just reset it all and start a new life with 0 knowledge, but both are ok.