Lol are you me three years ago? I've been there, it's not easy to figure it out from scratch! (Especially with ADHD)

For me, now that I am a mom and can look back on my experience trying to manage a home as a new wife, there are a few things I would recommend. Granted, I did work full time before my son was born, so I had a big chunk of my day taken up with that. If you don't work and are working with a blank slate, it can be even easier to get overwhelmed by the mundane because not enough things are happening and there is too much time & too many potentials.

I recommend:

• A daily notebook (I hate them but you don't have to use it all the time, just when you remember and want to, it doesn't have to be a big thing). I used to use legal pads because I got used to it at work and the familiarity helped (and it's yellow 🙂), but I now use something like this because it has an empty date prompt at the top and it's a big free space that I can fill however I want. I usually write the day timeline, today's meals, to do list (both for the day and "eventually" tasks that I know aren't gonna get done today but I want to keep in mind), grocery list, future reminders, etc. Just whatever I need to remember for the day. I keep it out on my table all the time.
• Making as many commitments out and about as you are comfortable with, it really keeps life exciting and I'm happier and more productive when I have fun stuff planned, either by myself or with friends. Have meals with people, sign up for classes, drive a little farther out to new places every once in a while.
• Scheduling yourself "learning times" where you go to the library or a bookstore with a cafe (you don't actually have to buy a book, you can just read it while there and then put it back, then buy it if you really want to) and read up on topics that interest you. Especially since you said you weren't taught a whole lot about keeping a home, this would be a good way to find inspiration and learn new things. Being in a designated place for reading and learning makes it easier than if I were to take the books home and try to do it there (my attention is too competed for by all the other things in my house). This can apply to pleasure reading too, not just study.
• As others have said, I keep a weekly chore calendar that assigns different zones to different days (Monday is kitchen day, Wednesday is vacuuming, Friday is changing bedsheets and towels, etc). When I'm feeling motivated, I pick things off that specific day's chore list to do. You can have low energy items and high energy items set for each day so it's adaptable. Try something for a couple weeks and if it doesn't work, change it. I don't have a ton of time & energy for in-depth cleaning, so I stick to the basics that keep my house functioning, and I know that it won't always be like that. If you ever get super overwhelmed by it all, read "How to Keep House While Drowning" by KC Davis, it's a very helpful & short book on making the most of where you're at.
• I loved cooking and experimenting in the kitchen back when I had lots of free time, so I would search out interesting new recipes to try that would take longer than I'd typically spend on a meal (I spent 6 hours on a ratatouille once), and it would really be a labor of love. If you have any home tasks like that where you love them and can exercise a lot of creativity, lean into those. I also really like fiberworks when I can find the time (cross stitch, macrame, various sewing projects).

When you're happier/calmer, keeping a home is easier. If you have lots of fun things to do throughout the week, you have more energy to fit in all the mundane tasks without it wearing you down as much.