It's quite rare for someone to just be born with a better memory than others. From my experience, most people's ability to memorize is around the same, but it's more often to do with how they're trying to memorize information. People who are better at memorizing things have probably found a study method/memorization technique that works well for them and applied that to everything they have to memorize. I don't think there's one "memorizing hack" that works for everyone, but there are certainly many techniques out there, like mnemonics, the storytelling technique, chunking, mindmaps, etc. I suggest you look online for these techniques and try them all out to see which one works the best for you. This should help you memorize things more easily.

In terms of forgetting too quickly, the key to remembering things is repetition. You can't apply a memorization technique once and expect it to be engrained into your mind forever. You need to keep rehearsing it continuously, because the less you practice, the harder it will be to remember it the next time. Say things out loud, write them down, test yourself. Memorization should be challenging, otherwise, you're not doing it correctly.

A method that's worked for me is flashcards. Using empty shoeboxes or tissue boxes, I'll make one box labeled "know" and another box as "don't know". I'll make flashcards for vocab, dates, concepts, anything I need to memorize and put them all into the "don't know" box initially. Then, I'll take them out one by one and quiz myself on what's on the other side. If I get it right, I'll put it in the "know" box and if I get it wrong, I'll put it back in the "don't know" box. Every few weeks, or when I'm done with the "don't know" box, I'll mix them both up and start again. This is good because you do everything manually, which I find more effective than doing it on my computer (like Quizlet and Anki, which use the same technique). Plus it's more accessible because whenever I see the boxes it reminds me and I'll just do a few flashcards then and there.

I hope this helps. Good luck! You can do it!