Or specifically, will I test positive for covid by the end of June 2023? (It doesn't count if I am confident that I have it, but fail to get a positive test throughout.)

I haven't had it to my knowledge so far this pandemic. I'm cautious relative to those around me, but 'those around me' are selected to be incautious. I currently think covid is worth substantially but not entirely avoiding. e.g. I try to see people outside, but occasionally go to indoor events with many people if it seems worth the risk. (This also functions as a 'change my mind' market—feel free to try to convince me to be incautious!) I'm unlikely to reduce testing much to win Ṁ. I'm susceptible to doing rash things for love, so this might be a market for 'how exciting will my romantic life be in the next seven months?'.