Frustrated 4 month old?

So I don’t know if this is normal but my son is 4 months old and I feel like he tries really hard to do stuff then when he can’t, he freaks out. Like his mind wants to do stuff that he’s not physically capable of just yet.

For example, when he does tummy time, he literally looks like hes trying to crawl. He obviously can’t crawl yet, so when he realizes this he starts crying hysterically. And when he’s on his back, he tries to roll over and he’s almost there but he seems to get frustrated that he can’t do it and then hysterically cries.

Also, he has a little play mat that has toys and objects hanging from it. He will grab the objects and try to bring them close to him but since they are attached, he freaks out lol.

Anyone else’s baby do this or is something wrong with my baby?