Baby shower worries

Hannah
I am 23 weeks and am kinda wondering about my baby shower.  Friend of mine who is also pregnant has had the date set for two showers since early on in her pregnancy. I asked her about planning them and she said that I can not plan my own, seeing as it is bad manners. So I just have to wait for someone to throw me one? Can I just plan my own? 
I worry And stress about things and id like to know when the shower is and what not. I'm afraid I won't even have one if I wait on someone to bring it up.