Words of wisdom to get over a silly mistake

Hi everyone, just looking for words of wisdom to get over how sorry and silly I'm feeling for myself, it's just so silly and I want to stop feeling like this quick smart. Please be kind with your comments, even if you think I'm being pathetic ? I'm not in the greatest condition atm and I just need some positive vibes and ideas to focus on.

I entered a competition for a cash prize of 30k ?. I had a call at around 5:30 am and I picked up my phone and saw it had no caller ID and I was feeling very unwell at the time I got the phone call, so I decided not to answer. It rang for about 2 rings.

As it was ringing out I thought to myself could it be the competition and I thought to myself no way could it be.

I quickly tuned in to where I could hear the competition, then heard 2 minutes (delayed obviously) later my name being called out.

Please don't judge me for being shallow, I know money isn't everything, I 100% get that. Money doesn't define who we are and I am just so damn thankful everyday that I'm alive and breathing and get to wake up in the morning. I got very sick a few months ago and spent over a month in hospital with a very serious life threatening illness and I haven't been able to work since and I am also on a chemotherapy drug that makes me very tired and sick from time to time. I also had a miscarriage during this time and found out it would be too dangerous to carry another child, so we are starting our surrogacy journey when I am feeling better and as some of you may know the cost is heartbreakingly expensive.

Im concentrating on the fact that it was never mine to begin with obviously and that it went to someone who probably needed it more and I'm genuinely happy for the person that won.

What is getting to me though is that I had my phone in my hand and I was so foolish not to answer the phone because I wasn't feeling well, even though it crossed my mind it could be the competition and now I'm beating myself up about it and of course I'm thinking about the what ifs and how much this could have helped out. But again, I have so many things to be thankful for.

So my question is, is there anyone out there that has done something so silly that they were stewing over it and what did you do to help get over it quickly. I can't believe I'm feeling like this, it's terrible and I don't want to feel like it a second longer. Am I being shallow, or would you feel upset too if you were so close and made such a silly mistake like I did?? Thanking you in advance for your supportive suggestions xx