If you're a 20-something on this board, you've probably got about 50 years left to live. Let's say, generously, that the first true life extension therapy is discovered today. It would take around 7~ years just to start, conduct, complete, and independently confirm the mice trials. Then, it would take at least 10~ years for the primate trials. Add another 10-15~ for the first human trials. Shit, you've already used 30/50 years, but hey at least the therapy works, right? But not so fast, the first breakthough therapies are always going to be infantile versions of what they'll eventually become. It takes, at MINIMUM, 30 more years for therapies to become even remotely competent at broadly completing their tasks.

The earliest chemotherapies, for example, only extended life of cancer patients by weeks, if at all. It took nearly half a century before odds started to lean in the treatments favor. Even today, 80 years later, it's still a highly flawed system. The first life extension treatments will likely only offer very incremental improvements to lifespan, which will mostly go unrealized as our ability to fight other diseases will probably only incrementally improve in the coming decades as well. So the idea of using a 10% lifespan increase to live long enough to see the next improved therapy isn't going to work out, you're still going to get diseases that won't let you cross the finish line (just like animals with "biological immortality").

Point being, you're going to die. Science won't save you, medicine won't save you, AI won't save you. Stop shitting up this board with immortality threads and go find a religion to get attached to.