Assalamu - Alaikum!
Take online classes if you have no Masjid (Mosque) nearby where you can get an education proper by Imam. I live in Canada, and always get call from Pakistan to advertise their Online Qur'aan program, and i have yet to figure out how they get our telephone number. LOL
I have studied all the alphabet words by Ustaad (Teacher), and that's how i managed to master the pronunciation of Holy Qur'aan. It's important to master the pronunciation where the Recitation can come handy for Ramadan to earn more rewards if not in this, definitely in Hereafter, Insha'Allaah!
Better to get schooled by Ustaad or Imam to get better understanding through Online, or perhaps, Masjid nearby. Insha'Allaah, you will begin to master the pronunciation of Holy Qur'aan in no time.