Am I messed up?

Is it wrong of me to not be able to accept that the girl I love blocked me and she doesn't want me in her life anymore? Do I need to just let it go? Or is it normal to cry every day and think about her 24/7? I'm extremely hurt and I want to respect her wish to be left alone but it hurts so bad because I still love her and want her but she wants nothing to do with me.