Need Help Choosing Parts

Hi Im a artist that like getting my hands in to just about everything creative. I really need a computer that can handle things smoothly and efficiently if I choose to pickup a project of any kind at the drop of a dime. For example like 3d scuplting for a game in a program named blender, coding for websites or programing, content creating like streaming on twitch gaming, movie editing, digital art, etc. I put a build together and I think its everything I need but Im not sure if it will work all together or if I need anything else thats where you all come in can't say Im very hardware savy so I need those who have alot of experience. Because this will be part of my lifes work going forward so its real important.