Before you buy anything create a PSN ID first right now and sign up for Asia PS Plus. You can log in using PC and buy the free games for August. Get both PS3 and PS4 free games. Don't forget PS Vita also. Just get every free game available for every console. You never know when you might have a PS4 or PS Vita some day and start regretting the days when you have free PS4 games and did not get them. You can use them as long as you subscribe to PS Plus.

Once that's done you can get a feel of what games you might like. You can get DLC from PS Store but make sure you get the DLC from the same region as the disk copy game you have. Or get the GOTY edition or Deluxe edition. They usually have the codes built in so no need to buy extra.