The recovery phrase restores your account if you lose the password. Because it alone can restore the account, anyone who holds it can take the account, so where you keep it matters more than almost anything else.
Write it on paper, in your own hand, and store it somewhere only you reach. Do not screenshot it, do not save it to a synced note, and do not paste it into any page. No genuine Awazon login ever asks for the recovery phrase, so a page that asks for it at login is a clone, full stop.
With the account made and the phrase stored, you are ready to add funds.