Class B needs an instructor's endorsement/training. I've also seen other airports prohibit T/Go landings by students - so make sure to check the AF/D as well. I think CHS due to the BAK-9 arresting equipment, for example.
Have Fun!
My CFI did the same thing Gajre539 did for my solo - just hopped out at the end of the runway and watched me do my 3 T/Go's. On my second approach he was taking a leak.
The joys of non-towered, rural airports.