The baby is 4 months old and doesn't lie in the stroller at home or ou…

The baby is 4 months old and doesn't lie in the stroller at home or outside. He wants to walk with him on his hands. He wants to see the view because he can't even sit down yet. On the street, I walk with him on my hands for two hours. My arms and back hurt already. How to train him? Has anyone encountered this? Are there any methods?