bloquer = to block, to prevent, to lock in place.
j'ai si peur que ça me bloque = I am so afraid that I can't do anything.
elle me regarde toujours que ça me bloque = she is always looking at me that I can't do anything.
Ça ne me disait rien = I didn't feel like it.
Ça ne me disait rien hier soir = I wasn't in the mood last night.
Or, I didn't think about it // it didn't mean anything to me
Ça ne me parle pas== I am not familiar with it //