A lot. I went on a total of five trips abroad, (counting my current one), saw more of Europe, made friends on each trip. Was able to excell even more in my studies by having the dream job of working for a professor, gaining a lot of experience by doing fun jobs and leaving a lasting impression.
I bought a 3DS and played a new Pokémon game for the first time in years, a high I'm still feeling. I got my first sexual experiences and gained more confidence in myself. I am currently on the trip of my life, still one month to go and I've enjoyed every bit of it so far.
2017 was very good on me. After how bad 2016 was for me, it was nice to have a year wherein everything seemed to have gone successfully, and everything felt right for once.