First, find out what prevents you from concentrating at work and, if possible, remove this hindrance. If you are bothered by noise, close the windows, unplug, and ask your family to turn down their TV or music. Try to retire where no one is bothering you.
Get motivated to complete a complex or uninteresting task. Try to see the next company from a new point of view and see some attractive aspects. If you find an essential stimulus, it will be much easier to focus and complete the task.
Gather your thoughts. Before starting work, put aside all thoughts and worries about other tasks and problems at home or office. The concentration of attention requires not only outer peace but also inner peace.
Planning well can help you focus your brain in the right direction and avoid distractions. Plan your work by dividing it into different phases. Even an enormous task is easier to manage if you break the solution down into multiple sub-goals.
Pause. It is impossible to concentrate at a high level for several hours. Sooner or later, fatigue will set in, and mistakes could have been avoided by taking a break of 5-15 minutes every hour.
Do not be absent-minded. Dedicate yourself entirely to one business. When a person tries to talk on the phone, write an article and chat on the forum simultaneously, their concentration decreases, and the probability of errors increases. Remember that you can entirely focus on one object at a time.
Follow your biological clock. If you are a morning person, try to do the most demanding work in the morning. Work at night if you have an owl biorhythm.
Lead a healthy lifestyle. Lack of sleep negatively affects the brain, affecting memory, thinking ability, and decreased attention. It is also important not to overload yourself during the day, following the principle that less is more.