iPhone Is Stuck Wont Turn On?

Hello, i recently dropped my iphone 7s and when i picked it up off the floor it hand black grey lines, but after it turned off and went black completely. I have tried everything, my home button is also hard/stuck it wont allow me to press it. I have tried everything on youtube. Ive tried to turn it on, charge it and still stuck on the black screen. I dont know what to do. Im starting to think maybe the battery is damaged and needs replacement?