How do I cope when my work goes unnoticed next to the algorithm?

You craft the features that make the model work, and you're tired of that craft being invisible while the algorithm gets the credit. That frustration is fair. You know how much quiet skill goes into the part no one names, and being overlooked stings precisely because the work is real. Much of the most important work is like this: essential, skilled, and unseen. The algorithm gets the applause because it's easy to point at. What you do is harder to see and often matters more. Knowing that yourself is where your steadiness has to start, because the credit may never come the way it should. Start keeping a plain record of what your feature work changed, the before and after in numbers. Show it when it counts. You can't force the world to notice, but you can stop letting its blind spot decide what your work is worth. You know what you built. Make it visible where you can, and let that be enough where you can't.