I see people throwing out knife sets after a year because "they don't cut tomatoes anymore."
Unless the handle is physically broken, your knife is fine. It just lost its edge. Even a $200 knife will get dull if you use it every day. You don't need a new set; you need maintenance.
The Fix: Get a simple handheld Knife Sharpener. You don't need a professional whetstone or special skills. The pull-through sharpeners (like the ones from Farberware or Smith's) take about 10 seconds to use.
Run the blade through 3 or 4 times, and it will slice through paper like it’s brand new. It’s the easiest $10 investment you can make for your kitchen.