No clue what to do after graduating

I recently graduated from EUR with a Bachelor's in Econometrics and achieved a 7.7 GPA. I'm feeling uncertain about my next steps. I have been accepted into the Financial Econometrics programme at UvA, and I also have the option to go directly into the EUR MSc in Quantitative Finance. I am hesitant to spend another year in Rotterdam, and I’m considering whether taking a gap year might be the right choice to switch geography. I should also mention that I am not a native or proficient Dutch speaker. I would really want to live in London though