Congratulations!!!
First of all, a well deserved congratulations are in order. Your first paying job in aviation is one that you will never forget. The tips I can give you, you probably know already, but I will share them anyway.
Use the time between now and when you start to develop some lesson plans based on the type of students you will be teaching. Don't waste time now on plans you will not use for a year or so (in other words, it's probably not the time to be preparing lesson plans for single-engine instrument approaches in a twin if that's not what you will be doing!).
Also, make a promise to yourself that a bad day with one student will not affect what you will do with your next student.
Use your briefing time wisely, make it entertaining and effective, your student's progress will depend on it. You only have their undivided attention for so long before each flight where they are actually focusing on what you are saying. After that point, they tunnel vision on getting in the air!
A couple of final thoughts: treat your students with respect and they will do the same in return. They are your greatest asset, and one of them may be the captain you are sitting to the right of someday. . . it has been known to happen

And as with any job in any field, treat your employer with the professional respect/courtesy he/she deserves, that person will be your ally when you persue other aviation interest and the background checks will reflect that.
Finally, HAVE FUN!!!! you will have the time of your life getting paid for what you love, and remember: not many peopla can say that!!!!
Again, Congratulations.
Fly safe!
Kevin