How to Hack into a Gmail Account for an ABSOLUTE Beginner

Hi everyone! One of my gmail accounts has been hacked and the hacker changed my password. Google aren't helping me to regain control of the account at all and I was wondering if anyone can help me to regain access. Like I said I am an absolute beginner and not necessarily skilled with computers so step by step instructions and explanation in layman's terms would be best. Thanks!

Ps. Because I'm trying to hack this specific email and the person in control of it is a hacker I don't think phishing would be appropriate so maybe brute forcing is best. Like I said I don't know much about this stuff so let me know!