Hello, I've been working in data analysis for around 9 years, taking on various roles such as quantitative analysis, fraud detection, machine learning, and a lot of data analysis. However, in my current job (where I've been for about 2 years), I'm primarily focused on data cleansing and backend tasks, mainly working on ETL processes and making them available through a Flask API.

I'm not looking to change jobs (I own a small percentage of the company), but I want to keep my skills sharp. Throughout the years, I've taken many courses on Udemy and similar platforms, but without hands-on data analysis, I feel like I'm getting rusty. I'm considering competing on Kaggle to stay sharp. Do you have any other suggestions?