Possible late-set ADD? Maybe always had ADD but some other issue has appeared? If you've not had to do it in your school years and it's appearing out of nowhere, it doesn't hurt to get an opinion about it. There's a recorded person diagnosed with Dementia at age 23. (Early-onset dementia) but I mean, that's in a league of it's own and very severe. Good luck OP!

I don't bother remembering anything anymore. I just Google it.

Been in a traumatic accident? TBI’s cause that. And BOY do I know it... 36 and I feel like I have dementia already from 3x TBI’s in 4 years.

I'm 40 and still write reminders on my hand. Find compensating mechanisms that work and stick with it.

Have you talked to your doctor about this? There are multiple conditions that could affect your short term memory, and some of them (like ADHD, for example) are lifelong. But if this is a new development, it would be a good idea to figure out what is going on with your brain.

Either use the “Notes” app on your smart phone or carry a little note pad and write the things down you want to remember. Different people have different strengths and weaknesses. You have memory issues, rather than stressing over that, use the tools available to you to save the information you need. You might even find that writing or otherwise recording it actually improves your ability to recall it - That was my case in school. My wife has memory issues from a stroke she had in her 20’s and she keeps a very detailed calendar and writes things down she needs to remember. I have a very good memory for what I did, what was said - but a poor memory for people’s names. We all have different strengths and weaknesses - Learn to compensate.

I do this all the time and I’m 30

Carry a notebook. Write shit down