Fighting with myself

Sometimes it happens to me that i have to fight with my inner-self to prove that i am correct or vice verse. This situation arises when i tried to create my image in eyes of some body else which doesn't reflect my true image wholly or partially. For example, Some friends thinks that i am a miser person who does not spend money easily.

But my definition of miser is little different, i.e. person who does not spend money easily when needed. So usually if person is close i tries to explain him my perspective of miserliness. but when person who is not close or i have just met, it usually becomes little difficult for me to pursue him. And then self fighting starts for either my definition is correct or what people thinks is correct.

For example like yesterday's incident, i was returning from Oakland after moving luggage of my friend on his new hotel. There in hotel, i met many new people who were working for the same client for which my friend was about to start. After meeting and talking with them, i decided to return back to San Francisco on the same day as another friend was about to come in my Unit.
Way of returning from Oakland is, one has to reach the nearest BART Station and then catch the BART to San Francisco. That nearest BART station was around 15-20 minutes distance by walk, as per hotel staff updated me. So i put this suggestion to all other people. One of them give me a look like, if i am fearing of spending $1.50 just for reaching the BART station.
Although that was true, But I don't want to show them that feeling, instead of trying to give them another way for thinking. I explained them that it is not like that i don't want to catch Bus, instead i want to cover that distance by foot, so that when i have to come back alone, i should not forgot the way. Then i saw on the faces of those people, it seems to me that they were convinced.
Although finally i catch the bus only and found that distance was more than 15-20 minutes. But my inner self was not convinced that time with the explanation i had given to those people. Finally i have to told my self that whatever explanation i had given that time was the correct. It took me more than 30 minutes to pursue myself for that. But at last i was successful.:)