thing is, if you're worried about messing up a steak or getting the timing right on seafood, you might want to lean into something that's actually harder to screw up. a really good pasta dish with proper technique beats a mediocre steak every time, but here's the thing - both the previous suggestions kind of assume you're comfortable being precise with heat and timing.
consider doing something like coq au vin or a nice braised short rib. sounds fancy as hell but it's basically throw-everything-in-a-pot cooking. you brown the meat, add wine, broth, some veggies and herbs, then stick it in the oven for like two hours while you hang out together. no last-minute panicking, no need to nail a perfect sear. the longer it cooks the better it gets honestly. serve it with crusty bread or over egg noodles and you've got restaurant-quality food that tastes better the next day too if you have leftovers.
if that feels like too much advance planning, stuffed chicken breasts are weirdly foolproof - pound them thin, stuff with whatever (cheese and spinach is classic), secure with toothpicks, pan sear then finish in the oven. plate it nicely with a simple pan sauce made from the drippings and some cream or wine, add some roasted vegetables on the side, and it looks way more complicated than it actually is. the key is just not overthinking it and letting decent ingredients do the heavy lifting.