You will no doubt be briefed "when in doubt - go around" Well that all depends if you are talking about approaching to land too high. Then you have no choice but to go-around using the correct go-around procedure for the aircraft type. The POH should tell you the procedure because a specific flap retraction sequence may come into it.
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if you happen to bounce on landing then all you do is apply a little power and ease the aircraft down and land ahead as long as you have enough room. . It's called "cushioning" the bounce.
Ask the instructor to demonstrate how to land from a bounce. It is perfectly safe providing you use good airmanship and good judgement. If he refuses to do so he has probably never done it himself. He shouldn't be an instructor in that case