spent 12 of my 19 years in the UK and have no case?

I am currently in a state of shock as i was told today that i have no case, i have been living in the uk since 2003 as a dependant on my fathers hsmp visa.....my visa expires in may so as it has been 6 years and i am over 18 i thought that now i can apply for indefinate leave as an adult and it would be simple. i have a whole life here, friends, a long term girlfriend, a mortgage a full time job and i also study at part time university. i was today told that since my parents are no longer in the uk there is NOTHING i can do apart from marry my girlfriend to stay...since i am 19 this is not an option. yes this is the woman i want to spend my life with and we have been serious for a while. i want to make sure every route is tested. i cannot even imagine not being here with my girlfriend or living my life .i have never taken a single benifit or help. i have paid all taxes and been a good citizen. how can they try to take my life away like this and say i have no case. i also lived in the uk from 1991 to 1995 under my dads student visa.

Could someone PLEASE tell me if there are any other routes to go down??
I would Greatly appreciate it
Pashax

If your parents are no longer in the UK neither should you be! You illegal now and working illegally to compound the felony. The decision is a correct one.

The only way is to marry when old enough, or use the EU route (search surinder singh here, I must have explained it a dozen times already!) but it means a big uplift.

Whatever you choose, do it quickly before the removal machine starts, they know u r here illegally now....