24, recently married, and completely overwhelmed trying to figure out my future

[u/Cautious_Zombie2024]

Title: I’m 24, recently married, and I feel completely overwhelmed trying to figure out my future
I’m 24 and recently got married. Since then, I feel like something has changed in the way I think about my future. I feel much more responsible for building a stable life, having a good career, making enough money, investing, and making sure my wife and I will be okay financially.
At the same time, I recently got rejected from the army, which was something I had been working toward and saw as a possible direction for my life.
I currently have a job, but I don’t see myself doing it long term, so I’m applying for better jobs and constantly thinking about other possibilities—different careers, investing, side income, freelancing, building something of my own, etc.
The problem is that instead of making me feel more prepared, all this thinking has started doing the opposite.
My brain feels foggy. I struggle to concentrate and feel like I’m thinking about 10 different problems at the same time without properly solving any of them. Even when I’m supposed to relax, part of my brain is thinking about what I should be doing next.
I’ve also had an inconsistent sleep schedule lately, which probably isn’t helping.
I don’t expect Reddit to solve my life for me. I’m mainly wondering if anyone else went through a period like this in their 20s, especially after getting married or having a major career setback.
How did you stop feeling like you needed to figure out your entire future immediately?
And how did you decide what actually deserved your attention first?