Ever Had Quarrels with your close buddies ?and did it affect your relationship ?

Hi! I have younger sister, the age gap between us is 4,5 years, which is critical. We have a lot of quarrels. Indeed there is no topics, where we share the same opinion. I think it is natural youth maximalism and we shall overcome that period soon. However, this spoils our short-term relationship a lot and makes the situation very stressful. Talking about my close friends, we do not argue at all. I don't think there even might be a reason for that, because they all are grown-up reasonable people and feel responsibility for their actions.