I've changed quite a bit. When I started running, I didn't really do warm-ups and cooldowns, which definitely started some of my problems in the beginning. After running for a couple of weeks, I eventually understood how important warm-ups were and started incorporating them into my runs.

That's also around the time when I started my 5K program, so I had something to guide me instead of just going running :P

Besides that, one of the things that helped minimize my injuries the most was, firstly, making sure my running posture was good. I used to take huge steps, but I got that down by doing some cadence training. Secondly, by doing strength training and stretches every day, I got some very helpful exercises from my physiotherapist to help me get my ankles stronger, which helped me massively.