Stress reduces your ability to remember where things are or retain new information. Stay calm and relaxed if you're trying to remember or learn something. Don't focus on your frustration, but calmly think of the thing that you are trying to remember.
Try exercise to improve your brain function. Some studies have shown that aerobic exercise can actually help you to grow brand new brain cells. These cells are grown in the brain's hippocampus. Aerobic exercise can be as simple as going for a run. If you prefer a Zumba class that works too.
Here is a memory tip! Remember something by categorizing it in your mind. This will make recall much easier! As an example, if you are going to go food shopping; remember meat and that will remind you that you need chicken, beef and pork.