How To Look Like I am in my Mid 20s

I am 25F and I am SICK of people assuming I am 12-14 because of my short stature and my baby face. Yesterday I was actually asked if I wanted a kids menu 🤦‍♀️

I know I will never be thought of as “beautiful” but I at the very least wanted to be looked at like an adult. I figured fashion was the place to start and revamp my wardrobe a bit.

I have no idea where to even start. I love florals and pink… but get told by my best friend that those things make me look like a little girl. (She is almost 60 but still). Maybe advice on how to still get my love of florals and pink but perhaps more elegant?

I only ever wear leggings or dresses… I loathe jeans but I also want to try new types of styles and just don’t know where to start.

I feel so lost with wanting to have a more mature wardrobe yet I love my fandoms too… I also have a hard time because I just look so short and stout in many clothes and overall just so frustrated with how to even dress my body type.

I do have an hourglass figure, and very pale skin (yeah I get made fun of for my pasty skin too but I’m not tanning either since it’s harmful and a history of doing cancer in the family).

Thank you for any advice on how to look as my mother says an “overdeveloped twelve year old” into a refined, elegant, youn woman.