It’s a dream of most of us if not everyone to stay young, strong, and energizes as in the early 20s but that’s not how the like works.
But there are a lot of ways you increase your strength and power as Mulberry, DarkestKnight, Edan, and others suggested.
Explore Necromancy and Vampyric path, ask your spirits, and ask here:
Ask Me Anything — Advanced Vampire Magick With N.D. Blackwood - #369 by N.D_Blackwood
We are connected with our faith and with our destiny… well this is my personal thoughts, no offense.