Dear , since you are having Biology and Chemistry as your career options you will have immense opportunities in future. You can choose following courses like

1. B.Sc Botany

2. B.Sc Zoology

3. B.Sc Microbiology

4. B.Sc Molecular / Marine Biology

5. B.Sc Biotechnology ( very important field of research)

6. B.Sc Chemistry Hons

7. B.Sc in Nutrition

There will be numerous job scopes like

1. Park Ranger

2. Zoologist

3. Research analyst

4. Nursery Manager

5. Nutritionist

6. Marine Biologist

7. Ecologist

And many more. So think positive, you have much more to come in future, even government jobs too

Good luck!!