Im confused, does she like me or was i just being over confident?

I started to talking to this girl in the beginning of the school year we really connected and texted it each other alot.She asked for my number and snapchat.She would mostly text first and send me the “heyyy”text. We would text every day.She told me her birthday was coming up so i bought her flowers and chocolates.That same day she told me she wanted to be friends.I became confused and accepted the fact i got friend zone.Did i do something wrong? do I know if this girl likes me.i'm confused?I started to talking to this girl in the beginning of the school year we really connected and texted it each other alot.She asked for my number and snapchat.She would mostly text first and send me the “heyyy”text.We would text every day.She told me her birthday was coming up so i bought her flowers and chocolates.That same day she told me she wanted to be friends.I became confused and accepted the fact i got friend zone.Did i do something wrong?