Boost YOLOv26 Detection Accuracy

My Kaggle notebook already trains a pair of YOLOv26 models that spot and product-type objects, but their best validation mAP hovers below the 85 % . I want that number pushed higher, with a clear focus... (Budget: $10 - $11 USD, Jobs: Computer Vision, Data Augmentation, Deep Learning, JavaScript, Machine Learning (ML), Object Detection, Python, Pytorch, Software Architecture, YOLO)