Not turning on, Not connecting to iTunes nor showing charging icon!

Hi,

My iphone had a problem with battery draining, Like when I go to sleep and wake up in the morning, I always found it switched off even though I charged it 100%... So, I had to charge it over again. But today something different happened. I connected the charger but I couldn't see the charging icon. I thought maybe it will take few more minutes, but nothing happened. I tried connecting my iphone with itunes, but it's not detecting it. I tried the hard reset method but still nothing.. It's completely off and I am so annoyed right now.. I also cleaned the charging port with the q-tip in a case if there were some dust or anything.. Anyway, I'm worried and I really, really need help !!!

What should I do? :(

Model: iPhone 5s

ios Version: 9.2.1

Model: A1530

Please help me guys !! :'(