How does mortality manifest for Arwen and Luthien?

Upon announcing her choice to separate from her father and remain in Middle earth with Aragorn, Arwen begins her life as a mortal woman. What do you think this reality is actually like in her case? She is already a few thousand years old in Elven years at that point. The change must be jarring, because not only is there a cultural challenge to face but a physical and psychological one as well (I'm assuming).

Did she keep her youthful looks but gain a world-weariness that she never felt as an Elf? Did she age and weaken like Aragorn and had to learn for the very first time what fevers feel like? Did she retain telepathic communication with her brothers and other Elves? Did she have to grieve the loss of an Elvish connection to Nature and all things spiritual? All the "magical" arts that she had learned and cultivated in herself under the tutelage of her grandmother, that allowed her to watch Aragorn from afar and weave an enchanted war banner for him - did the force that made it all possible leave her while the knowledge remains?

I have these same questions for Luthien, who was a literal sorceress and, by all accounts, far greater in spiritual power and beauty than Arwen. In the comment section of another post I had asked and received answers on Arwen's aging matching that of Aragorn's. That leads me to wonder about Elladan and Elrohir, too: if Arwen's scale of mortal life follows that of her husband's (because she bound herself to him, right?), then what would her brothers' mortal lifespan be if they also decide to go for the Doom of Men?

I appreciate both lore-based text citations and opinions / headcanons!

Side note: Elrond's concern that Arwen will find mortality hard to endure is even more tragic when you remember that he himself was born mortal and experienced mortal life for 90 years. He also witnessed firsthand his brother's mortal decline and death. Elros kept his mortality while Elrond relinquished his, so it was Elrond who had to adjust while Elros just went on with his life. Now his own daughter relinquishes her rare gift - which she only got because of his choices - for the one that his brother stuck to, and has to adjust to all its challenges even before death comes for her. I find his apprehension as a Half Elven father deeply sad and relatable in this light, afterlife separation aside. Must be hard to see your child choosing the hardships that you were glad to be rid of.