You did nothing wrong, save perhaps not having your lapstrap done up tightly enough.
You were Captain, made a decision, the aircraft didn't get bent, therefore it was a good decision.
The tower can authorise you to land, but ultimately it's your decision and they have no right to second guess it unless they think you are bringing the aircraft into danger, which you weren't.
They'll get over it, debrief with your instructor then carry on and get your licence without worrying about this after that.
G