I'm a similar age and have recently started running so in a pretty similar spot. Here are a few things I've learned in the last few weeks that have been particularly useful:

1. Injuries don't necessarily happen during your run, but after
   This was very weird for me as it was not the case in any other sports that I've played. You can complete a run and feel good, only to wake up the next day with pretty bad injuries. I learned this the hard way. Your body needs to adapt to the impact and loads on your joints and muscles so don't push it too far on distance even if you feel like you can manage it. Your body might not be ready so build up to it.
2. Focus on maintaining consistent speed
   At the beginning it was always the case that my first 2 kilometres were significantly faster than the rest. From what I've gathered, it's better to have more consistency. This felt weird as I really had to consciously slow down at the beginning of my runs and go a lot slower than I naturally would. I think it has contributed to my improvements though.
3. It's okay to have an easy run
   There's nothing wrong with going out and running at a pace that is very manageable for a distance that's also very manageable. Consistency is key, it's okay to take it easy, it just contributes to a stronger base and will help you avoid injuries.
4. Tracking
   I personally use Strava and I really like it. Having some friends on it is great for motivation. Seeing your progression is also brilliant for motivation. It also provides a break down of time/km so you can track how consistent your pace was during the run.
5. Take injury prevention and treatment very seriously
   Injuries are very common for runners. Make sure to take the necessary precautions and listen to your body if you start to feel that something might be a bit off. I had a very lax approach to it at the start, thinking I was indestructible. I wasn't and got injured because I was stupid and ignored to advice about injury prevention.