Hello!
This is a really common piece of feedback, and something I definitely struggled with during my first couple of interviews. However, it is definitely fixable with a bit of structure and practice!
A big part of being concise is having a clear structure in your head before you start speaking. For most answers, I would try to think in a simple framework such as: point -> example -> result. You almost want to lead with your conclusion first (so that it is clear what you are discussing), rather than building up to it. For example, instead of talking around an experience and hoping the point becomes clear, I would start with the key message and then briefly support it - for example, "
I developed my ability to manage competing deadlines during my internship at X, where I...".
It can also really help to limit yourself to one strong example per question. It might be that your answers become longer as you are trying to include lots of information - I can totally understand why, as it might be that a few of your experiences fit the question, but one well-explained example is almost always more effective than three rushed ones.
Additionally, I would aim for answers that are around 60-90 seconds in length. When practising, it helps to actually time yourself with a stopwatch and see how long you are taking. It can definitely feel slightly unnatural at first, but it quickly builds an internal sense of what "concise enough" sounds like, and you'll often realise when you are talking for too long.
You might also find it useful to signpost your answer as you - even something simple such as "
there are two main things I took from this experience..." helps keep you focused and reassures the interviewer that your answer is structured and concise. However, I would be cautious of doing this with video interviews unless you are able to practice first, as it might be that you run out of time and are unable to make the final point you wanted to make.
Finally, I would try to avoid being afraid to stop once you have made your point. In my experience, I kept talking during interviews as the silence made me uncomfortable and I felt a need to fill it, but in interviews, clarity is much more important than filling space for the sake of it.
If you can, I would really recommend recording yourself answering some of the more common questions, as it is one of the fastest ways to spot where you are over-explaining or going off track. This is something that you can improve really quickly with practice, so try not to worry too much about it!