It depends on how you are driving the car, but I think that you will be fine.
Your tires, likely, won't allow you to, effectively, go fast enough to overheat the brakes during a lapping session.
If you are "ham-handed" enough though, it could happen. Lol
If you notice that you are having to apply more pressure to the pedal to get the car slowed down, than normal, it means that the brake pads are overheating.
If the pedal begins to feel "spongy", that means the brake fluid has begun to boil.
In either case, you will need to slow down and take some cool down laps.
I wouldn't worry too much about it and just go out there and have a good time!