HELP ASAP! can u cancel and not ruin your OS if you select the wrong drive

I tried to use the migration to ssd tool to see if I can migrate the SSD to a !TB WD black hybrid drive and it didn't seem like the right options were there so I accidentally clicked "migrate" and I cancelled right away... is my main SSD OS safe? I'm currently booted into it now and I don't wanna loose it since I don't have it partitioned out! Please help ASAP!!

Hi,
The migration operation can`t corrupt your OS on the source disk. At most the operation can fail to migrate on the target disk mostly due to the exotic system configuration like having boot files on one drive and system ones on the other and so on. You should be careful with partitioning operations on your OS partition.