Do you have a fever? If it is not strep, if that quick test was correct, it is wrong all of the time, your sore throat will be gone by tomorrow. If you don’t have a fever it probably is not strep. Anyway, your sore throat will be gone in the next 12 hours and then you will get a lull for about 12 hours and then you will be horribly congested, that is my prediction.
If you still have the sore throat bring chloreseptic spray. Spray a bunch, you can do it over and over again, every half hour to get your through. Also take some ibuprofen, it will make you feel much better in general. Ibuprofen is a magic pill, as long as you don’t have any bad reaction/allergy to it. Take 600mg with food and plenty of water if you weigh over 130, or just two pills (400mg) if you weigh less. It takes 50 minutes to feel better after the pills. You can take some tonight and practice. You can take the pills every 4–6 hours.