@Worried2024 I don't think your dog looks like a pitbull terrier at all.
https://www.k9obedience.co.uk/dogbreed/pitbullterrier.html
Description of the main characteristics of the Pit Bull Terrier:
General Description: Muscular smooth-haired dog. Has a square profile (i.e. as tall from the ground to the top of the shoulder and as long from the point of the shoulder to point of the hip. - Your dog is clearly longer than they are high
Height: Average for both male and female 45-55cm.
Head: Should be wedge-shaped when viewed from top or side and round when viewed from front. Broad jawbones, skull and strongly developed nostrils. Strongly developed cheek and jaw muscles. Your dog does not have strongly developed cheek and jaw muscles
Muzzle: Not pointed.
Ears: Located high on skull. Tip of ears folds foreword or sideways or have been cropped. No wrinkles.
Eyes: Elliptical when viewed from front. Triangular when viewed from the side. Small and deep set. Your dog's eyes are not particularly small or deep set
Neck: Muscular all the way up to the base of skull.
Chest: Broad. Deep ribcage. Ribs strongly curved tapering towards bottom. Your picture of your dog lying down shows quite a labby shape - hard to tell but not as shaped as I would have expected
Back: Muscular. Broad sloping hips. Broad loin. No sloping hips
Legs: Front legs are straight and give massive, solid impression. Hips are long and broad and continue on to become relatively long hind legs with a well muscled thigh. Your dog has standard 'dog thighs'. Nothing overly muscular.
Coat: Single coat. Short smooth haired but bristled to touch. Can be any colour.
Tail: Located low down in the hindquarters. Thick at base tapering to a point at the end. Narrows to a slender tip or has been docked. Should hang like a pump handle when relaxed.