My son died seven months ago at the age of 24 how do I know if he’s in heaven and can he see me and hear me and why have I not gotten any signs yet from him or Mom just not seeing the signs how do I know if he’s OK how do I know if he’s happy?

My son died Feb 11, 2024 from fentanyl. Forever 35. I believe he did not want to die and I am sure h...