Your profile doesn’t show any submitted solutions for yesterday. That’s why your streak ended. I think that helping other campers on the chat and getting thanked for it can keep your streak alive while you’re working on harder challenges that may take more than a day to solve, if you’re really worried about it. Or you could go over some of your early challenges, now that you know more, and try to improve your solutions.
Mostly: don’t worry about it too much.