1. Get a phrasebook.
You can find a list of recommended phrasebooks here.
2. Download Anki.
Anki is a computer program that helps you memorise information. Think of it as your own personal assistant who is on call 24/7, incredibly efficient, incredibly patient, incredibly organised and free.
You can find more info about Anki, including a link to download it here.
3. Set up your Anki deck.
There are step-by-step instructions here, and additional instructions for adding Hanzi or Kanji to your deck here.
4. Learn 10 new words/phrases (on average) per day
Learn the phrases both ways i.e. from your target language to your mother tongue and vice versa.
Give yourself a deadline and stick to it.
5. Repeat until you have memorised the entire phrasebook.
Here is the post I wrote in English when I did this. And to prove it works, here is the same post in Spanish.
Optional
6. Book yourself in for a standardised test.
Give yourself a concrete goal, and hopefully an internationally recognised qualification. You can find out more about this here.
Memorise the Phrasebook to Learn a New Language 
This looks really interesting. We live in Spain for half the year, and my 10 year old is somewhat reluctant to expand his vocabulary. We’ll look into this. And thanks for following lorinotes.wordpress.com!
No worries, Lori. Good luck!