What will happen when I login for the first time, if I already have local scores?

I’m new to Etterna, and I’ve been playing offline for quite a while (a few weeks at least, ~100 plays and 8hrs playtime). I haven’t made an account until now, and I want to know what will happen if I login with my new account. Will my local scores transfer to my online account on their own, or will I have to start all over?

upon logging in your scores in ranked packs will automatically upload, if that shouldnt work or if some scores are missing you can manually upload your etterna.xml found in etterna\save\localprofiles\somenumbers which contains all of your scores