

have problem with sanding this work.
this is one of my works, there are some nodes on it when i tried to sand it, this happened, it sanded more than other parts, you'll see some bad marks on the inside part, that simply because im a noob and my gouge wasn't sharp enough.
someone suggested that you shouldn't sand with your hand on this kinda wood so it won't happen, is that right? What would you guys do?