set clear goals
have a clear goals long term as well as for activities you are performing so that you will be clear of the outcome you want and make corrections if needed
90 minutes focus block
do your work in a batch of 90 minutes or less and take a break of 10-15 mins after that to refresh your brain to work efficiently
focus on one thing at a time
focus on one thing at a time instead of multi-tasking which uses a lot of brain power and will leave you feeling exhausted
prioritize
prioritize the activity according to their importance and urgency so that you are not distracted by work that doesn't add any value
optimize you work area
optimize you work area by reducing clutter and arranging necessary tools and resources within your reach so that you dont get distracted
eat right
eat healthy and nutritious food preferably light lunch so that you don't feel to tired after lunch
exercise
follow a fitness regime so your body can release some stress
use breathing technique
use breathing technique such as box breathing to reduce stress and make your mind more focused