Sign in to reach your accounts on this device.
This takes about five minutes and you only do it once.
Leave anything you don't have blank. You can add accounts and currencies later.
Only changes the comparison figures. Every entry keeps the currency you actually paid in, and history recomputes at the rates that applied on each day.
Count what's actually there. The difference gets logged as an entry, so your records stay honest about what happened.
Type what you counted.