Need help fitting my bike.

(Sorry for low quality video)

Hi everyone, ever since I bought this bike I’ve always had a problem riding it comfortably, always experiencing minor pain and discomfort on my neck, back, shoulder and my hands. I have tried many stem positions and nothing seems to work right for me especially while I’m riding on the first position in this video

On a long ride, Sometimes my foot and toes will go numb for some reason and I had to get off my bike and rest on the side of the road until the numbing stops before continuing. Any tips or advice is appreciated, thank you very much 🙏