When you write "make another ground", I'm assuming you thought the green/black wire was a ground wire and attached it to something other than the "S" lug (perhaps the body of the starter). It is not a ground wire - it is voltage from your starting switch that activates your starter. If that green/black wire is connected to ground somewhere, then you would be driving starting circuit voltage straight to ground, and thus blowing your fuse.
The ground of your starter is through the engine block.
The image below shows the proper connections (the "S" lug will be a smaller nut/bolt or a tab). The top cylinder is called the "solenoid", and the bottom cylinder is your starter motor. The solenoid works like a light switch. When you turn the switch on your steering column to start your car, voltage is sent into the starter at the "S" lug. This "S" voltage acts like your finger flipping a switch, and the B+ voltage (directly from your battery) is routed through the solenoid and then through that other wire into the starter motor. After the car starts, you release your key on the starter motor, the "S" voltage then disappears and you are effectively flipping the switch on your solenoid to the "off" position.