I will add that sometimes you have to make hard choices in live, especially when you're young. I did not have horses in my 20s because I was studying, then trying to make a name for myself in a competitive field. In my 30s, I was raising two babies. It was only in my mid 40s that my life slowed down enough that I knew it was realistic to have horses again (I'd had them from age 5 - 17). There is just no way I could have done everything I did and had horses. Some part of my life would have suffered, and I needed good income, a good career, and to be a good mom. So as hard as it was, I just decided to wait. Then my daughter, who was 6 at the time, asked for riding lessons one day, and a few years later, I bought her a horse, then one for myself, then another... and I've never been so happy in my entire life. Mid-life is extremely liberating.
Now my kids are teens, my job is secure, I have a good income, I have the land to support horses at home, and most of my friends are also raising families and/or pursuing their passions or careers, and they get it. They no longer expect me to hang out with them all the time, or drop everything to go on a road trip at the last minute. No one my age does that anymore. We all have responsibilities now and we like our quiet time.
Trying to do it all will probably lead to missing some important pieces of your life or burnout. I'm not interested in either of those options. I know you think you can do it all when you're young, and some people do, but it's a dangerous game that can quickly get overwhelming. So I suggest you prioritize, and if riding is one of your top priorities, schedule those rides a couple of days a week, and keep those times free, just like you would if you had promised you'd have coffee with a friend who is going through a rough time. Be that friend to yourself, and your mare.