STS- Students Teaching Students

Is there something you wish you'd known at the start of your journey that you would like to share with others? Perhaps there was something that is now clear to you but at the start you wish there had been someone to help you or tell you? What about why it is worth getting involved? What you have gained from this experience, what you have given? Maybe how much fun the learning can be, especially when you look back on it and what you have achieved?