How do I get better at avoiding small, repeated mistakes that frustrate my partner?

I’m a college student living next to campus. My girlfriend works at the computer science building at UMD and has a parking permit. Usually, she parks at my place, I drive her to work, and she picks up her car later.

Today, I accidentally parked the car in the wrong lot and got a ticket. She was understandably upset, but this led to a bigger conversation. She told me that while these mistakes are not huge, they add up. It could be forgetting to bring something we need, typing something wrong, or misplacing things. She says she feels like she has to double-check me often, and she does not know why it is so hard for me to reread or double-check before I do something. She told me that this is exhausting and makes her reconsider our relationship.

I have ADHD, but I have never really blamed my mistakes on that. I admit I can be disorganized, while she is much more detail-oriented. I genuinely want to improve and take pressure off her, but I am struggling to figure out how to change in a consistent way.

I am not looking for validation or to paint either of us as the bad guy. I would like practical, proven strategies for:

• Reducing small but repeated mistakes in day-to-day life
• Building habits or systems that stick
• Balancing being spontaneous with being reliable for a partner

If you have been in a similar dynamic, whether you are the one making mistakes or the one feeling frustrated, what actually worked for you?

formatted with GPT before i get hate LOL