I had to prop my babe on a rolled up soft blanket that made it so he wasnt flat, and then hold up a black and white fun image for him to look at
We got our baby a water mat and it’s the only thing that’s prevented her from setting the house on fire during tummy time. We were lucky to get 5 min a week LOL
Laying him on your chest is also considered tummy time. Are you laying him flat on the surface or is he kinda of propped up on something ? I’ll try putting a boppy or a pillow under his stomach/chest. But my daughter is the same way I’m glad if she even gets 5 minutes in.