If i remember correctly it is manhwa. The mc is weak since they thought that the mc hasn't been awakened. The mc had a traumatic childhood past that is one of the reason why his awakening is kinda late compare to the other child. Fast forward, the mc and his classmates the mc and his classmates were inside the building to conduct there training then suddenly a terrorist attack occurred, they killed students, then the mc is scared. He came face to face with the leader of the terrorist. So the mc ability has a connection with his alter ego. And he still can't control it, I think it has some sort of connection with blood, since his parents had been brutally killed by his auntie and uncle.
I wrote what i remembered
sounds like this one : https://www.mangago.me/read-manga/my_school_life_pretending_to_be_a_worthless_person/

Does anyone know the title of this manhwa? Where the power of the FL is luck, where she's like the lucky charm of the family. But the family thought that she doesn't have a power and was cast out and kicked, resulting to the family going bankrupt or something
Please helpp!!
camping here
https://www.mangago.me/read-manga/i_won_t_go_back_to_my_family_who_abandoned_me/
this is the only manhwa that came to mind lol. sorry if this isn't the one you're looking for( ̄∇ ̄")
Yes this is the one I'm looking for! Thank you!! ♡´・ᴗ・`♡