Hey Anna,
Yeah I need to do a video tutorial for migrating one day. I think for beginners that's not so easy to do.
Please send these infos to my email armin.unruh@gmail.com
website address address of new lay theme website login to wordpress backend ftp server/host, ftp username, ftp password login to webhost (a webhost is where you got your webspace)Then I can migrate for u!