bumpy landings
Hello
I am in instructor and the advice is simple. Like everyone else i wasn't there and so will be guarded, but;
1. If your approach is too fast or slow at the decision point (i will resist identifying the point as there are differing views) which must not be later than the threshold, GO AROUND!
2. If at any stage, even when the a/c wheels have touched, if you are not fully in control, GO AROUND!
3. If the a/c enters a porpoise (your instructor will explain this to you) then you have no control, the result of this in some a/c types can be catostrophic, GO AROUND!
I never ever contradict my students for making a decision to go around. It must always be the first option. An a/c is more manageable in the air for that is what they are built to do, fly! As i'm sure you have already discovered a/c are cumblesum and awkward on the ground and once out of control there is no control, so if in doubt GO AROUND! gain control.
You don't say at what stage you have so far reached in your circuit training but from what you say it is time for your instructor to undertake a session with you on 'go arounds' and i'm sure he/she will when you ask.
All the best