Is it illegal to buy what i want this my ssi?

Cos i only get one income and that is my ssi. I saved my money an bought and ipadi air 2, iphone 5s, wii and whole bunch of fun stuff. Also i do use the ssi to pay bills like rent, utilities, cell phone service, internet sevice too. Is that illegal?

Added (1). Yes i do buy stuff i need. I'm not like one of these people that don't pay bills with it and buy all i want with it.

IPhone 5s 32gb / 64 gb or iPhone 6s 16gb?

Should I go buy an iPhone 5s instead of keeping my iPhone 6s? My only problem with my 6s is I don't have enough gb i ordered 64 but by the time my mom called them they said I couldn't trade it bc it had been past 14 days… I'm already out of gb and I can't even take anymore pictures I don't have my own computer to save them to or anything so that's out of the question… Also if you think I should get an iPhone 5s where's the cheapest place to by them? I have phones that have broken screens & tons of phone cases I could trade in probably but that's about it…

IPhone 5 glass clicking and popping out?

Yesterday, I bought an iPhone 5 second-hand that was in very good condition. After a few hours of using it, I noticed that when I pressed the glass on the right corner of the screen it would make a click sound. Afterwards I realized that the glass is slightly popping out. I checked the serial number on the Apple verification page. It seems the phone is legally bought, but the warranty and support are expired, so I can't do anything about it. I have only 3 questions:
1. Can the colors or the quality of image be affected by this problem?
2. Will it do more damage if I keep the iPhone like this without fixing the glass? (because it doesn't really upset me using it like this)
3. Could this damage happen because of a swollen battery? How can I check the health of the battery?

I dropped my iphone in water yet it still works?

This morning at 7 I dropped my phone in the toilet because I forgot it was in my back pocket. (I know I'm stupid) So anyways, the phone still worked. I dried everything off with a hair dryer and played a song to check the sound and it works just fine, it charges normally, I can still use headphones and nothing is practically wrong wth it. My home button is a little laggy but that's it. It was probably underwater for 6 seconds and it went all the way under. Should I do anything else or is it okay?