Suggestions for the gym

I'm a beginner who has just started going to the gym. I am 21F and want to lose 4kgs.

I have been working so hard at the gym but my weight is stable even though people say that i am young and it's easier for me to lose weight...

This is so damn annoying

I am in desperate need of knowing how to work upon myself as i feel inferior as well as insecure around my college friends.

I spend around one and a half at the gym daily except for sundays.

I am unable to control snacks as it is still the beginning but I'm trying my best...