When I just got trained to do electrical measurements, I misused my measurement gear often. I had to use extremely delicate probe needles which could be only seen clearly under a microscope. It was very easy to bend it. That was the kind of things that went wrong often when I was a learner. Everything needs practice. It doesn’t matter if anything goes wrong – the important thing is that I learn from it and throughout multiple trials and errors, I’ve become experienced.
Yes, in research you get plenty wrong the first time. Most experiments we do have to be repeated, often more than once. Also, a lot of the instruments we build are prototypes, meaning that they are not perfect and often don’t work exactly as we want. This means we have to change them a bit after testing. But this is OK, this is how we learn and do better next time.