I keep taking breaks and procrastinating because in the moment of trying to do something I find that I cannot do it. This makes me feel bad and I turn away from what it is that I want to do and take a break or indulge in a distraction.
Thorough preparation done before setting out on trying to complete a task within a certain time scale makes the process much much easier. It also allows you to identify the points of perceived impossibility along the way and to resolve them in advance. I find that if I set out to do something without good preparation up front then I quickly encounter small problems that break my concentration and leave me floundering until I knuckle down and get on with them.
Doing work in batches of similar activity is a great way of blasting through a whole load of work but that can only happen after you have prepared yourself so that the whole batch processing method can work.
This article can help you understand what happens when you procrastinate and how to deal very effectively with it.
Procrastination Nick Pagan