Pop up help

Hi would appreciate some advice. I'm a near 30 year old woman. I've been surfing for about 6 months now about twice a week in 1-2 foot waves surfing green waves. My biggest road block is my pop up. When I first started surfing I couldn't pop up at all for the first 3 months. A lot of it was arm strength as I couldn't even do one push up (proper push up that is). So I ended up developing a habit of jumping up to my back knee and then bringing my front foot around the side and in between my hands. Now that I've been practicing the pop up at home for the past few months I can do it easily on dry land. I've taken several go pro videos of my pop up and analysed it to the detail. I know where I'm going wrong but breaking the habit is really hard. Now one of the key things I noticed is that a second before I go to pop up my legs pop up in the air. I.e I bend at my knees and feet point up to the sky. This makes it impossible to swing my legs around as I don't have the strength to do the pop up from my knees yet (working on that). Thus I end up on my back knee. I can do the pop up on dry ground but there my feet are together and not shooting up like they do in the water. Does anyone have any suggestions for how I can go about fixing this?