So the speed didn't decay before the ridge.... and bounced, x 3 times...
Ah, now, there was a thread on this not very long ago.
At the point where you realised you were too fast you had the option of going around - why did you choose not to?
After the first bounce you had the option of going around - why did you choose not to?
After the second bounce you had the option of going around - why did you choose not to?
I would guess that the answer might be that you were
not, in fact, actively considering whether to go around at each of these points, and didn't, in fact, make any such concious decision. That's understandable, at your stage, as it's one of the things you have to learn to do. What's less easy to guess is why the instructor (you say "we" so I assume you weren't solo) didn't (a) remind you to consider the option of going around, or (b) tell you to go around, or (c) take control and go around. (Of course the instructor might very well have had perfectly good reasons, all I'm saying is that I can't guess what they were from what you've posted.)
PS: We've all done it.