What should I do... im desperate

Guys my father bought me a phone about 5 days ago... he also bought a protective glass so i used it.. last night my phone just fell of my hands and my screen has broke in some places... it works fine.. touchscreen is ok i can use it normally.. but my dad had already told me that he doesnt have enough money so i shall take care of it... so i want to fix my screen as soon as possible so that he doesnt notice... i cant afford paying the new screen and the repairment which costs 110 euros... so i want to buy the screen online.. what shall i buy only a digitizer? please help me and if you have found an easy tutorial about fixing the broken screen for this model please send me the address...Thanks for your time...

A 17-years-old student...