By SSR do you mean All Star Sports Resort?
Doesn't really matter. Exit Disney and head to I-4. Take I-4 East towards Orlando. Don't worry about traffic, you'll be going early in the morning before rush hour. As you travel on I-4, you'll see Dixie Stampede dinner show on your right, the Sea World of Florida sign, a bunch of hotels on International Drive, and then the exit for USF.
Get in the right lane and get off at Universal Blvd. As you exit, the ramp goes up, stay to the left. You cross over the highway below you, now get in the right lane and it leads to the parking lot. If you miss Universal Blvd, get in the left lane and it exits to Kirkman Road heading North, make the next left on Major Blvd, and you'll see the parking garage.
Coming home is the opposite. Exit the USF garage and follow the signs to I-4 heading West towards Tampa. Follow the signs back to your resort.
The good news, is that you are going at an off peak time of the year, crowds will be light.