Month old baby in fits of rage unless "standing" or "crawling"

He used to hate tummy time, but since 4 days ago when helping him reposition his legs, (tummy on breastfeeding pillow) he would stick them out straight and then run forwards and face plant the bed. When we help him sit up, he then stomps his feet and pushed up into a standing position which is when he finally stops crying. Unless he is eating or sleeping (he stomps against anything his feet touch and he wakes himself up excited to stand) he is crying in frustration wanting to stand.

I can't take the crying right now. What can I do to make him feel like he is standing??