Congrats on applying and going back!
Some summers I need a break and will use it; others depending on what classes are offered, I need to go to school over the summer. Unfortunately I don't have a choice this summer as one of the two classes that I need to finish my Bachelor's is only offered second summer session, and I will have have three weeks before second summer session starts after finishing the Associates on Friday. I am really looking forward to the break this time. However, I have to use some of it to study for a certification exam that I have to take between July-August too; so it is not much of a summer here this time around.
It can be nice to have the summer to review the materials for an upcoming class, to start to get into the habit of reading again if have not in awhile, but at least it is at your leisure. Summer surprisingly passes quickly. I would enjoy the time that I have during the summer if nothing was pressing as time can be so limited once school starts back; you will be able to enjoy getting back into school soon enough. Congrats on going back and good luck with your classes!