dive in with both feet

dive in with both feet

To begin or undertake something quickly, enthusiastically, and without trepidation. I know you're nervous about starting school, but you just need to dive in with both feet and do your best!
See also: both, dive, feet
Farlex Dictionary of Idioms.

dive in with both feet

 and jump in with both feet
Fig. to become completely involved with something quickly, especially something new. I had never done anything like this before, but I just jumped in with both feet and learned it in no time.
See also: both, dive, feet
McGraw-Hill Dictionary of American Idioms and Phrasal Verbs.
See also:
  • dive in
  • jump in feet first
  • jump in with both feet
  • jump in with both feet, to
  • have (one's) heart in (something)
  • have your heart in
  • Go for it!
  • hate (someone or something) like sin
  • hate like sin
  • go great guns