IPhone 5s hombutton not working properly?

Ok so I don't know how this happened, but my home button does work it just won't bring me back to the homescreen? Like it will work for everything else (Siri, closing recent apps, etc.) the only way I can get to my homescreen is if I go onto recent apps and tap the homescreen. I've tried using assistive touch, it works for everything else except homescreen? I tap on the home option and nothing happens… But it works for Siri? Oh and also control centre won't work. I can't swipe up from the bottom to open it, and on assistive touch, I tap the option - nothing happens? Someone please help as soon as possible thank you so muchhh

Contact apple on their website. They are very helpful. I go to them all the time whenever i need help with my apple products

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