Yes, doing well academically is the most important thing but there is more to uni than just the academics.
If you are a strong student and it sounds like you are then I'm sure in the long run you're going to do fine at uni.
But there are a lot of other life skills that are developed during uni and getting comfortable talking with the opposite sex is
one of them. Not everyone gets to find their way to being comfortable chatting with the opposite sex, so, good for you.
Now, you're a guy, and should be able to compartmentalize your thinking. You know how to study well so when it is that time make that your priority but it doesn't have to be everyday. Take time to socialize and get to know those girls - it's important too!
Find out how you've done here