TS, it is an excellent choice to decide ur stream now. Many and i mean too many students just go for the stream that was suggested/forced just because they think that stream offers a better salary/future. But, it may not happen in that way. Some engineering graduates do end up working in office/bank/etc or doctors who gave up, thinking that medical field is too boring or stressful.

Now I knw its hard for u to decide which is ur type of field since ur still young and haven't done much research yet. I myself ended up in science stream bcoz my results were good. Gladly, science is totally my thing. Science pretty much involves a lot on critical thinking, logic, rational, analytic, problem solving, maths and memory. Here, u will study many things on how our world works scientifically, mathematically and by understanding. Personally, I love science bcoz of the vastness of knowledge and the usefulness when applied in our daily life. If ur searching for high pay jobs, look no further than business. But, just stick to ur interest. I'm not really sure about arts but I think they r mainly about utilising ur creativity, views, opinion, communication, psychology and etc. Maybe some others can explain to u about arts stream. Gd luck and study hard & smart for ur future