if u know math it’s fine. i’d suggest getting decent with python and basic libraries then progressing to numpy and pytorch. also, read about sql and try to practice the concepts you learned in a project you find interesting. since many projects you’d do locally prolly dont need sql, id also suggest using leetcode to practice sql. ur fine, after working as an intern in data science, i can confidently say that most of the team mainly self taught after studying like economics or another science