Launch yourself into
Definition 1 of 2
Pro Tip 1/3Full Dedication
Use when describing someone giving their all to a new challenge or venture. 
He launched himself into learning French, practicing daily.
Pro Tip 2/3Immediate Action
Implies starting something quickly without hesitation. 
Once she had the idea, she launched herself into creating the app.
Pro Tip 3/3Active Engagement
Suggests a high level of involvement or interest in a particular activity. 
They launched themselves into the community project with enthusiasm.