Psychic abilities can be successfully improved by paying attention to smaller things in life - it is good practice and there's not much risk if things go wrong.
The requirement for this approach is self-discipline.
The reason why most people rather disregard their psychic potential rather then improve upon it is because they find self-discipline to be hard - it's too much thought, too much energy, too much willpower, too much clarity and self-honesty.
If you practice on the little things; little perceptions and little observations, you can find out a great deal about yourself which will help you tackle the big stuff.
Improving psychic abilities can be a long process, but sooner or later your consciousness will tie it all up in a neat little package and give it to you as a present - at that point your realize that you have already mastered what you set out to improve.
The universe has a way of changing little things to big ones, and big things too little ones - pay attention to this process and you will be on the right track to improve your psychic abilities.