Immortality isn't happening, but you can significantly increase your health-span, to give you more time to keep learning cool fascinating stuff. There are steps you can take now to delay aging, based on well-run clinical trials, including supplementation with metformin (the TAME trial). Other measures are looking hopeful but are still being researched, including use of rapamycin (PEARL trial). Here's a good resource: a podcast by Dr. Peter Attia, also good for nerding out on lots of interesting topics. https://peterattiamd.com/podcast/