Would my parents arguing effect my concetration?

My parents argued and had fights constantly from me being born to being 6 when they split and still had arguments and stuff for a fair few years later, would this effect my concentration and like how slow i am, im not totally like stupid but i always feel im nearly the last to learn anything at school, and it affected me in the was it took me to being 6 to stop wetting the bed, and when people are like joking around and shouting and stuff i don't take it too well and it winds me up, and its come up to one of the most important times in my life where i need to concentrate, i saw the school counsellor about it but shes really not a very good women to talk to. so could it be possible or nothing to do with it??