Which dirt bike should I get?

I was wondering what dirt bike to get I've had 2 dirt bikes and 1 pit bike they were a 50cc 80cc and 125cc I've been to 1 track before and to my friends house with the 125 and he has jumps and a almost a track still working on it but I wanted to know what bike was perfect for me I'm 5 foot 2 and 120lbs and experienced here are the bikes: Kawasaki klx 140l Yamaha ttr230 or Honda crf230

I have a Honda CRF 230, a Yamaha TTR 250, Kawasaki KX250 and a KLX 400 for dirt bikes. Each is different, and for different styles and types of riding. You didn't say what kind of riding you're planning on doing.
CRF-230. Best "Trail" bike you can get. Low seat height, light weight, responsive throttle, easy to handle, Honda bulletproof. TTR-250, pretty similar, but more comfortable, more forgiving, maybe not quite as responsive… But I also have an oversized rear sprocket on it.
KLX 400. Tons of power, the "Cadillac of trail bikes". Water cooled, maneuverable. Strong.
Kawasaki KX250F = Rocket ship. Made to be as comfortable on the track as the trail. It a 4-stroke that acts like a 2-stroke. Not hard to keep the front tire off the ground. It's a toy.
All are 4-strokes. All are electric start except the KX250. Honda's are easiest on maintenance (opinion), all have excellent maintenance support and pretty much equal, except for the 400, on aftermarket support. The 400 is too tall for you, the 230 would probably be perfect. I'd stay away from the 140, you'll outgrow it too soon. If I had to pick between the Yamaha or the Honda, I'd go with the Honda, but that's no slap against the Yamaha, just a personal preference. CRF-230's are a bit more common to find I believe. Either way, you can't go wrong with either, so might as well go with the one that seems the better deal.