@skelltan@hellsite.site do what you want to do. if you're not genuinely interested in the subject it's generally gonna go badly. that said—don't make your final decision in advance unless you have to. first year or two at uni's a good opportunity to figure these things out with both experience (from taking relevant courses) and assistance (from school guidance folks or just chatting with more advanced students)
disclaimer: most of this advice is secondhand; i think it's mostly accurate but maybe not perfect?