The objective:

TOEFL iBT test (https://www.ets.org/toefl.html)

The TOEFL iBT test is the only TOEFL test that is accepted around he world.

The iTP test is only valid in Mexico.

Some tips and Hacks:

Change the language in your Phone, Table, Laptop and Video Games Console.
Listen Podcast and Take notes.
Journaling.
Watch your favorite series and films in English.
Listen more music in english.
Write the lyrics of your favorite songs.
Make your To do List in English

Youtube Chanels: