Dowloading played games

Is there any way I can download my past game data? I need it for a personal data science project. If there's a way, how can i do it? I'm just a beginner in this field, so I'd really appreciate some pointers. 

You can make api calls to download your games month by month : Documentation here : 

https://www.chess.com/news/view/published-data-api#pubapi-endpoint-games

Please note that, with the servers overload, it is nice to not overcharge the system by hundreds or thousands of queries.

You can get it through openingtree.com but you need to get it once as White and once as Black.

They have figured out how to do it programmatically, so it can be done without splitting white/black, too.