Welcome! What are your hair properties and dew points/ humidity? See Live Curly Live Free website, frizz forecast app on the main NC site, all the stickes on the newbies board and this one.
Forget what scrunching always does, there are different application methods (raking, smoothing with palms, gentle squeezing in) and different techniques work with different products and other techniques. Scrunching into dripping hair is way different to scrunching into damp hair. And your hair should change it's tastes and needs as it gets healthier - many of us struggle to get or maintain clumps in the early days of CG.
If you want hold you probably want a gel/ jelly or mousse depending on your hair type. Crunch gets gently scrunched out when your hair is bone dry (many of us press or squeeze it's not a vigorous thing). Which leave in conditioner you use and how much is a major part of clumping, not simply your styling product.
If you've been flat ironing fine hair daily and permanently colour treating your hair is highly unlikely to be healthy it will be damaged, dryness and frizz is likely symptomatic of that. Split or velcro ends don't just mean hair is damaged, they mean the ends are damaged beyond repair or 'fried'. For damaged or porous hair beneficial ingredients include coconut oil, hydrolysed protein, ceramides and panthenol. Fine hair does particularly well with hydrolysed protein.
2a-2c, medium texture, porous/ colour treated. Three years CG, growing out mechanical and chemical damage = breakage and very high porosity. Past armpit length heading for waist.
Treatments: Komaza protein, Komaza Matani, coconut oil with sugar syrup. Hairveda Sitrinillah
Leave in: Fructis Sleek & Shine (old), Gliss ultimate volume
Styler: Umberto Giannini jelly, Boots curl creme, Rockin RInglets
Experimenting with: Mega-Tek, Curl Harmony reviver, Elvive Full Restore 5.