car seat and stroller

Fatima
Hello ladies ❤️
I'm a first time momy and i need your help
Specially old moms 
In my community not a lot of people use car seat! So i have no one to ask about the best type or what should i look for 
And the car seats are so expensive so I don't want to west my money on something not good im student also my husband is student and we want to use our savings in something useful safe for our baby 
Car seat cost ( 400 - 800 $) 
Also the stroller they are recommending stokke have any one use it ? And do you recommend something else? And what should i look for 
I want something last for 3 years