I agree with some of ht either posters. Your hopes of becoming an officer look very bleak at least for the next several years. Even if you meet the requirements to obtain certification many agencies will not hire you. There are others who have never tried drugs applying.
My advise try to join the military for at least one enlistment, but definitely longer than the minimum requirement of drug free. You have nothing better to do for several years to regain your respectability for LE. Working at Mickey D's isn't going to cut it. You need to get back on the road to respectability.
But when a long train of abuses and usurpations, pursuing invariably the same object, evinces a design to reduce them under absolute Despotism, it is their right, it is their duty, to throw off such Government, and to provide new guards for their future security.
Translation for the intellectually challenged: If the government screws the people too much, it is the right and duty of the people to revolt and form a new government.