Bad

I just received a project from my Advanced Secure Programming module and I need help on just starting really. Here is the description: The project requires the implementation of a secure application (of student’s choice) in any programming language. The application should cover at least 4 out of the seven pernicious kingdoms. (https://cwe.mitre.org/documents/sources/SevenPerniciousKingdoms.pdf): • Input validation and representation (mandatory) • API abuse • Security features • Time and state • Errors (mandatory) • Code quality • Encapsulation I just need an idea on what I could do really, if anyone can provide any examples or places I could learn certain things I would really appreciate it, as I'm not the best at coding. All help appreciated!