First period help please

Hey so I just started my period and I’m really nervous and feel really weird I want to tell my best friend but I’m scared of how she will react ? Also can my period stop me from being able to do anything ? Please help me guys x WTF SPEAKINH OF HER Sshe just asked me to stay round her house literally I’m not lying or anything 😭😭 please help me guys what if I bleed through something I’m literally having a panic attack 😭😭😭😭😭