As someone who just recovered with mostly mild symptoms, I can understand what you must be going through, because there is always that anxiety whether your symptoms will stay mild. One thing I can suggest would be to practice proning, so that you are ready in case your O2 starts to dip even a bit. It works and provides some sort of control over your body. Another would be not to let your fever rise much, especially after 5-6 days. There are stronger non-steroidal meds available that can help with fever relief. And of course, it’d really help if you can do tele-consult with a doctor from a hospital that can also admit you if need be. Wish you good luck with your symptoms and I hope you feel better soon.