Learning generally boils down to "Repetition or the avoidance of pain", some people learn by doing, some by watching and some just have to pee on the electric fence.
Whether you think that you can, or that you can't, you are usually right. Henry Ford
Welcome aboard. Since you have some experience cooking and metal work this will be easy for you. Don't cheap out, build the one you really want. Make sure to use the calculator.