IR is outstanding, I Law awesome, US history really pays back, Punjabi a good choice. It's false assumption that IR is not scoring. It is! you just need to understand its theories, concept, and need to grip on it jargons and terminology.
Both Agri and Forestry and Gender Studies are beneficial. However, currently there is no advisable book on Agri and Forestry but there is one for Gender Studies ( I mean that of Nawaz Khalid. I have studied it and found it satisfactory).
If you have an availability with a teacher who can teach you on Gender studies then go for it..............