I am new to solidworks or any drawing/design program of any type.

i have always done my layout of my work by hand and need to get out of the stone age, i build custom metal kitchen hoods and didnt know if anyone had any input on how to get started making a 3 concave side kitchen hood on here or if there is any template or shortcut to the basic shape that can be modified. i hope to get better with this someday but looking for an entry into designing on here so i can try to keep up with the times in my field. Thanks for any help.