What can I do to improve my memory?

I feel like my memory has gotten dramatically worse and I’m only 26 years old. My short term memory is becoming extremely debilitating and I have a job where I can’t stand out or expect a promotion if I have to constantly rely on my computer to remember names/facts/info/etc.

I am not looking for tricks like mnemonics, there is just too much information to retain to be trying to use a trick on everything.

I am willing to try any experiment, pill, supplement, treatment, etc. I’m not sure, but I believe, some psychology might be involved?

Please, only serious responses would be appreciated. If you can even point me in the right direction.

Thank you!