jump in feet first

jump in feet first

To begin or undertake something quickly, enthusiastically, and without trepidation. I know you're nervous about starting school, but you just need to jump in feet first and do your best!
See also: feet, first, jump
References in periodicals archive ?
Don't jump in feet first. Let a store-hosting service worry about fending off Internet hackers, as well as hardware and software issues that only the top computer networking gurus can handle.