Can't potty train my daughter

Kimberly • 26 years old. Have a 4 year old a 1 and half year old.
My daughter is two and half and has no interest in using the potty. I've tried a sticker chart and reward. I try to put her on the potty and encourage her to do a wee but she'll sit there for a minute then run off. Is it just to early and I'm worrying too much about it?