GOOD MORNING LADIES!!! I have a question ??

Gooood morning, ladies my babygirl is 5months an 1week, she is trying to sit up on her own but when she does she falls forward, my question is who’s baby is sitting up on there own without any help an how many weeks? I mean she hates laying down now because she wants to sit up, she does everything else just fine rolling over, cooonin, smiling, laughing hard,ect but not sitting up oooohhh also is anyone experiencing teething omg my baby is the most drolly baby ever lmao I have to change her and her clothes like 3x a day lmao 😂 .. is anybody going thru this too lmao 😂