Avoid deceiving yourself.Although we have been talking about deception in a negative way, whenever we think about this thing in relation to ourselves, then we try to give it a positive form. To deceive yourself means trying to pretend or understand yourself as who you are not really. This does not mean that you limit yourself by reducing your ability, but sometimes we know very well what we can and cannot do, yet you want to take every task in order to make yourself the most qualified, and by doing so we deceive ourselves as well as those in front, who is in the hope that we will complete their work in time.
In this case both the aspects are important that do not deceive yourself even in relation to your abilities and secondly do not even try to show what you are not, if you really want to increase your abilities then work on them first. Make yourself worthy by doing that, after that accept that work.