I am so glad to have come across this thread as I too had a bad experience on an early solo which almost made me quit and set me back at least 10 hours.
On final approach I got distracted looking for another aircraft in the circuit and found myself dangerously low and slow but as someone else pointed out in your case the training kicks in and I went around all be it shaking and with a sense of panic I had never experienced in my life.
Good to see you achieved your goal and good luck with your flying.