The observer continues from one lifetime to the next, the ego, the identity, the memory was the subject of observation. Those are left behind and a new round of observation begins, new memories are formed, a new ego and identity is established. This is the case for most people. Some groups of people viewed this as a problem, and some practices and lineages were created to address this perceived problem.
Also please be careful with who's advice you listen to in this thread.
I see you interacting with a person here who thinks they can shoot eye lasers, fly faster than the speed of light, give themselves brain power injections, open portals to other universes, kill ancient Naga demons, and has a harem of anime elf girls.
No I am actually serious, they claimed this publicly here on the forum.
Please realize that some people here are either role playing or delusional or some combination thereof, and please be careful of who's opinion's you listen to.