Confused what to do
Hii , I am CSE student and my second year has just started . I have completed around 70 Dsa questions on Leetcode and have studied Python(Only that much which is required for Dsa),Numpy,Pandas, Matplotlib, Seaborn, Sql. Everyday I either solve dsa questions or learn maths for data science and machine learning or practice sql. But the problem is I have studied these things but never used them in a project or never done some sort of data cleaning and stuff cause I don't know how to do that. Now it's time to participate in hackathons but I don't know how to start and I can really build something with only these skills. What is your advice what should I do from here also I need to participate in hackathons also (I am enrolled in a DS course where for about 1.5 months they will teach maths then will jump to Machine learning and other topics)