PEOPLE PLZ HELP

Okay so I work at a phone store. Metro pcs. And I hate my job so much. February will be one year that I’ve worked here. But I just got a new job that keeps me busy all day and my work days don’t drag on like they do at the phone store. So I put my two weeks in (about two weeks ago). Tomorrow is supposed to be my last day. But I’m dreading it so much. I seriously do not want to go. And everyone keeps saying to just call out and I want too big I feel the guilt so heavy on my shoulders and I hate that feeling. What do I do?!?