Urethra Pain and left back side pain

Since yesterday, when I pee my urethra burns after. Also, my pee is cloudy and I might as well have UTI, and I also feel the urge to pee and few seconds...So since last night when I woke up in the middle of the night. I went to pee and I was fine it didn't burn at all. I did drink 2 cups of "Cranberry Juice", and it helped me a little bit. Also once I got back in bed I noticed the left side of my back is hurting me. I also did research and it said it's probably from the UTI. I haven't got to the docters yet. So please any advice or home remedies? Thank You so much!