Yolov9 bad results

I want to train a model with personal protective equipment. When I train with a helmet, vest and mask, the results are good, but when I add gloves and goggles in addition to these equipment by taking images from different datasets, the results get quite bad. Is there a dataset or approach you can recommend?

I need a dataset of situations with and without hardhats, vests, masks, gloves and goggles(Hardhat,No-Hardhat, Glove, No-Glove etc.)

https://universe.roboflow.com/yavuzhan-zom9x/mergeddataset-50xku/dataset/19 (Dataset I created by merging)
https://universe.roboflow.com/roboflow-universe-projects/construction-site-safety (The dataset I use for hardhats, vests and masks)

I am presenting the success evaluation metrics of the last model I trained in the screenshot.

Thanks for your support.

Non viene menzionato alcun file del repository, test o punto di ingresso. Inizia confrontando il dataset unito collegato con il dataset construction-site-safety e le metriche di valutazione riportate, concentrandoti sulla copertura delle label e sulla composizione del dataset. Il lavoro è completo quando viene documentato se i dati spiegano il peggioramento dei risultati e viene identificato un dataset o approccio di addestramento adatto.