Use mygrammarlab (pearson) along with the course it's applied for (most likely New Total English), you can use English grammar in use by Murphy as well to clarify some small aspects which might not be covered by grammarlab.

Definitelly, you'll neeed that book, that you have just mentioned, but also you'll neee a teacher to guide you through the language jouney. If you neee any help, feel free to ask me. Have a nice day.

A teacher. :) Let's chat!