Please answer I'm having problems at my current boxing gym what should i do?

so basically whenever we spar at the gym i currently attend, the other dudes try to knock me out. i dont understand the point in this. i thought sparring was to practice and further develop skills during a live fighting situation, not to knockout your sparring partner. anyways, thats what my partners try to do. plus my trainer makes me fight a style that im not comfortable with and he told me that i have to do what he says, not what im comfortable with. any tips on what i should do? i have a good relationship with my trainer hes cool but once again, he makes me fight a style im not comfortable with. should i just speak to him about it, or leave the gym altogether?