Planning to make Website like edmodo.com for thesis/capstone

Hi guys im a mid average programmer, do you think i can make edmodo.com like website i mean i want just a student and professor to have online quizzes like that see their quiz/exam results online example the professor set the quiz or exam for tues @ 10am and will end @ tues @ 6pm like that i will not make look like edmodo i mean i will get some of the features of edmodo have thank you so much for your suggestion i mean i have at least about 3 months to 4 months to do it and i can spend my time for at list 10 to 15hrs day for this project ?

i just want to ask question for the pro here if this project going to be so big ? thank you ^_^