Tip 1 : Practice at least 5 questions of each topic of various difficulty levels
Tip 2 : Read out theory articles about your preferred language showing your proficiency in the same.
Tip 3 : Hard work is overrated, consistency is the key.

Tip 1 : Own everything you have there, do not add random skills that you are not proficient in.
Tip 2 : Keep it clean and try to give out minimal but most of the relevant information for the role.