Really need help.

Lisa

My son is nearly 4 months and I've never seen a temper like this in a baby especially so young. He's been so spoilt I can never put him down, I've tried just letting him cry but he gets into such a state over it he holds his breath and has real anger in him. Anyone got any tips on how to get him out of it while he's young? I don't want him going round beating and biting other kids and throwing fits in public