Reading the other comments- I decided chemical engineering over chemistry! The key thing is that chemical engineering tends to be the physical side of chemistry. If you aren't 100% sure I would recommend looking at courses at universities to see if what is within a chemical engineering course is what you want to do in the future. Engineering is generally maths heavy- but the maths is applied. I chose chemical engineering because I really enjoy mechanics- and also despite liking chemistry quite a bit I also enjoyed physics which led me to chemical engineering.