Turning a regular expression into a DFA


i’m studying for an exam i’ll have soon and i don’t understand how to draw a DFA for a regular expression, i asked my professor by mail but he doesn’t asnwer… In the courses available on my college’s website there is no step by step exemple Here is the expression i’m trying to convert b(a∗dc)∗

Thank you for the help !

edit i’ve done this but i’m not sure:

i tried