As you pack up your personal belongings, and close down your various student activities related to your college / university life, you're probably spending some time creating various traces, to point to your new life, which is now starting. One such activity would involve filing various "change of address" notifications, for people / services who communicate with you through postal mail, addressed to the college postal address which you use.
Similar to postal mail, you probably have a college email address, issued to you when you registered as a student. Hopefully by now, you have setup a non college email account, and are busy filling out change of address "notifications" for the many services which communicate with you through email. As you do this, you should think of your Blogger account, which owns your Blogger blogs.
Before you lose access to your Blogger account that's based on your college email account, setup a new Blogger account, based on your new non college email address. Then, transfer control of your blog(s), to your new Blogger account.
Don't delay - do this now - before you end up asking for help that can't be provided.