Next step .consult a Doctor General physcian.
They will suggest a proper antibiotic because both fever and UTI. My opinion is after consultation if you go through proper home diet and rest will get cured.
Next Steps
Good general physcian advice plus simpke home remedy.
Drink plenty if water with jeera. it cools the body temperature is reduced.
Fruits in the night.
Health Tips
avoid going outside for few days you might be infective for others.