College cut short? what now?

hey guys I'm in a bit of a pinch I've just finished my first year of college and haven't done well at all and I'm being threatened by my parents if I continue like this I won't be supported anymore financially and mentally because my mom is pretty greedy and my dad is forced to be that way but anyway what should I do if college is no longer an option I'm really interested in criminal justice and being a detective i have a knack for that kind of stuff because my grandmother was a detective for the Cleveland police department long ago and I feel I've picked up her genes from that also keep in mind the college I go to is nctc a shitty community college that claims they help people which is a lie I've sought out help in math which is my Achilles heel in academics everything else is a breeze except the grammar Nazi Language art's class sometimes which is rare but if college is no longer and option what should I do to pursue a career in criminal justice and if anyone makes any nasty comment's about my problems you better think twice because if you step in my shoes for 10 minutes you would kill your self from how stupid you are