So my hair is pretty long now but want it short like Lana parrilla..

her hair is straight but saw this photo and i love how it falls and my hair is usually like that but im scared if i cut it that ir won't stay that way and become frizzy .. so ive been thinking of using maybe waxes or pomades maybe even texturisers to tame it but that might also be too thick for my hair.. what you all think?
"2 Something ATM"
Coarse, Medium- Thick, Normal Porosity

My Routine
Low 'Poo: curash soothing oatmeal conditioning shampoo
RO: tresemme naturals moisturising conditioner
LI: tresemme naturals/kinky curly knot today
Seal: mix of shea butter/coconut oil

Goals
waist length hair & finding a sexual cheapo leave in conditioner for both me and my daughter