Everyone is in a process of change and development which does not stop our whole life is a learning process. The fact that you feel uncomfortable about the number of lies you have started telling would indicate that you haven't changed as much as you think. There is no reason why you cannot develop into someone who is known as honest and open but has tact and consideration for others.
Lies can get you into trouble especially if you tell too many, keeping track of them all is a tricky process. If you are in a relationship where you are telling needless lies then perhaps you need to look at this. Good relationships can withstand difficult truths.