I don't like religion. I was raised religious but anytime I hear anything about it now, I get anxiety.
Oh, wow. I'm sorry to hear that. Not all religions are the same though.
To be honest they do all seem the same to me though. Religions generally have similar elements such as  rituals, sermons, sacrifices, festivals, feasts, trances, initiations, and prayer. 
I see, it's amazing how people all over the world come up with similar beliefs
Most religions use it as a way to give meaning to life and/or to shape it's followers. 
I see, religion has a lot of cultural significance
Yes it does for some people, its can be defined as a system of designated behaviors and practices, world views, texts, sanctified places, prophesies, ethics, or organizations that relate humanity to the supernatural. 
I see, I guess that's why religion is declining in the modern age
Yes that's a big part of secularization thesis" which refers to the belief that as society progresses through modernization and rationalization, religion loses its authority in all aspects of social life and governance.
I guess it's just the nature of progress