Going through your consultation I can see that you could do with a few different vitamins to top up on the number of fruits and vegetables you eat. For this, I would recommend vitamins A, C and E and turmeric extract. Turmeric extract contains lots of plant micronutrients, such as polyphenols, and is a powerful anti-inflammatory, which makes it extremely healthful in many areas across the body.
Black pepper extract greatly improves the absorption of turmeric extract, so I would include this as well.
Vitamin D can be obtained through foods such as fish, but it is mostly acquired through synthesis when sunlight contacts the skin. The UK government recommends 15 minutes of sun exposure daily to get the right amount of vitamin D, but this can be quite hard due to the weather. As you can't manage to get daily sun exposure, I would suggest adding vitamin D to your formula.
In your consultation, you mention that you suffer from low mood/anxiety. This may be due to low serotonin levels in your brain. 5-HTP, a naturally occurring amino acid, can help to increase the levels of serotonin, as your body uses 5-HTP to make it. Magnesium is very important for brain health and can help with mood. Therefore, I would recommend including both of these in your formula.
Magnesium and the omega 3 fatty acid, DHA, are vital for overall brain health, since you struggle with your focus and memory, I'll make sure there's enough of these in your formula to help with this.