If your coffee is tasting watery, you probably need to increase your brew ratio. For a drip coffee, you want to be in the range of 1:15-1:18 depending on the bean and personal preference.
If your issue is the body/texture of the coffees here, you might prefer a brew method that doesn’t involve paper filters. Something like a moka pot or a french press would be a cheap way to dip your toes into this, and a moka pot brew with water added is probably the cheapest way to get something close to an Americano, which is what I assume you mean by black coffee.
Also, you’re going to see people recommending that you buy specialty coffee from a local roaster, but I don’t think that should be the first move you make if your goal is recreating your experience in Italy. American third wave coffee has a tendency towards highlighting origin characteristic and bright tones, which don’t lend themselves toward getting the result I think you’re looking for. If you want a roast-forward flavor profile, try using a mass-produced Italian supermarket brand like Illy or Lavazza.
Personally, I’m usually making a cortado with a bit of a longer ratio (1:2.5) to get more punchy fruit flavors out of my roasts. But if I’m evaluating a new bean/tweaking my roast, I’ll also brew on a V60/Orea V4 so that I can get a bit more flavor separation and nuance. Also since it’s summer, I’ll sometimes do a Japanese iced coffee in the afternoons.
If you lose motivation because of the amount of time that you’d spend cooking, you should consider using days off to prep building blocks that can be used for different meals. Keeping the initial cook simple can give you a broad canvas to change things up on the spot so that you don’t get fatigued over the flavor. You can salt a large chunk of meat like a pork shoulder or chuck roast and use a long cooking method like a braise or a roast. The longer cook times will make these cuts extremely tender, and you’ll only have to do it once. Use them throughout the week in whatever application you feel like on the day, even if that means just adding it to your ramen. Since it’s just salted, it’s versatile enough to adapt to whatever seasonings or sauces you add to it. If you’re using store bought ingredients, you can put together pasta, bbq sandwiches, or quesadillas pretty quickly.
As far as vegetables go, you can also prep individual portions of things like a mirepoix a week ahead of time, to cut down on the work you have to do every day. You could even freeze it in ice cube trays to make them last longer if you have the space. You can mince garlic ahead of time and store it in a neutral oil. If you don’t mind acidity, pickling and lacto fermenting your vegetables is a good way to both preserve them and have something that’s ready to go on demand. Some vegetables like broccoli can be parcooked without sacrificing texture to reduce the amount of time you have to spend cooking on the day of.
Meal kits may not have worked for you because they simplify the shopping, not the actual cooking process. It still takes the same amount of time to cook a meal kit, which doesn’t exactly help when you’re hungry and exhausted. I think that prepping pieces of a meal in advance will give you the tools to throw something together almost as quickly and easily as ramen, which might lead to you cooking more often. I hope this helps, and I’d be happy to expand on anything that was vague or otherwise lacking!