This happens quite often to me that whenever I'm in situation which involves other people and I happen to outburst my emotion which is not the usual behaviour, I'm immediately filled with thoughts of having dealt the situation in alternative ways and then be anxious about it the whole day or for coming days if the situation happens to be a little grave. It gives me a anxiety (I tend to have sweaty palms and feet and I can't concentrate on my studies).

Maybe, it can be illustrated with an example better: While commuting, I saw a car driver using the cell phone and without looking into his mirror he swayed to the right, I had to immediately apply brakes which obviously got me a little infuriated, and then while overtaking his car again, I through my hand, signalled him not to use phone and rather focus on driving the car. Just after a few minutes after I reached my destination. I started to imagine how could that situation have been dealt better or how I could have just ignored it altogether and then started to have a little perspiration on my palms and feet. 

P.S.: I happen to be violence phobic. I'm also non-intrusive in others' lives until the situation involves me or if I'm asked about my opinion. 

P.P.S.: I happen to live in India in a tier-2 city and keeping in view the population density and family ties, it is not possible to live a life of solitude, although I try my best to live all by myself. 

Wondering if it is normal or if there are anyways in which I can be a little less affected by such things.