Theres a text that says purchase battle pass for 1000VP but does this mean that only 1 tier is unlocked? This will be my first time buying something from battle pass so please help me

I’m iron 2 currently. I have been playing for about a year hear and there but then only played consistently last act. I can send my Val clips to help me see my weaknesses and etc. My goal is to hit sliver to plat this year. My skill thus...