Im also color blind little worse than you shades are a prob for me. I have a hard time with more colors too. I work in a cabinet shop, dealing with different species of wood. I had to learn ways around seeing off colors like different shades of gray in maple, or the greener side of poplar. If I have an issue and cant make up my mind on what side is the better side or whatever I ask…never be ashamed to ask. I think you can over come it don't let something that small stop you from doin what you want to do.