Can happen to anyone. I bought some discount forks online a few years back, then realized that the frame that I thought could take a tapered steerer couldn’t. So I bought a discount frame online too. Then, while I was shopping for the frame, I realized that there was a sale on XT groupsets. Pity to have a nice new bike with shabby old wheels, saddle, bars, etc. so figured I might as well treat myself and finish it off properly. Most expensive forks I’ve ever owned.
Then I found out that the frame that I thought couldn’t take tapered forks can, it just needed a new bottom headset bearing. So I bought some new forks and a headset and it’s all sorted. Isn’t it nice when stories have a happy ending.