I understand and applaud your enthusiasm......BUT.....trust me. As a student myself, you cannot fly all day. This is a mental process which requires breaks and review. On a good day, you can get maybe 6 quality flights, but you would be so burned out that I would see your planes on e-bay. And your instructor has a life too.

The batteries for your Rx will, in most cases, last well beyond those in your Tx. if you have a replacement for the Tx, then, by all means get one for the plane. If you intend to be reasonable and take a break, get a field charger.

Good luck, and have fun...that is what this hobby is about. Don't rush it....relax.