Q: i dont remember what i set my wifi password as.  how do i see it on my iphone

You need to interrogate your router and change the password there.  You can access the router with an IP address that you type into the address window in an Internet browser.  For example for my router it is 192.168.0.1 once I do that a window pops up on my computer or wherever the browser I am using is located and asks for a user name and password.  These may still be the factory defaults for your brand of router if you have not changed them.  If all else fails you can restore the router to its factory settings.  This will enable you to set a new password for your wifi but you will also need to reconfigure all the settings on your router so that it connects to the Internet (as per your ISP requirements) and redo any encryption you may have had previously.  I assume you have the manual that came with your router. If not get it from the Internet or from the manufacturer of the router.  Good luck!