Weav33

So I’m 16 years old and experimenting around with forging knives. I invested in a propane forge an anvil a bench grinder, sander, and a couple other miscellaneous tools. I actually managed to come out with a decent looking knife that I made from some scrap flat bar I got from my trade school I go to. The knife didn’t come out all that bad…… after watching a lot of YouTube videos and lots of internet research I managed to put it into a nice shape. Here’s where I get stuck and need the help. First off my blade has hammer marks on both sides, they aren’t horrible but kind of an eyes sore. Second off what is the best way to sharpen the knife. I’ve heard so many different ways I don’t rlly know what to do. I do have a 1x30 bench top belt sander with an assortment of belts but not really sure how to use it. And 3rd what is a good coating I can put on my blade so it doesn’t look ugly and deformed. Spray paint?, powder coat?, I’m open to anything thanks………