@ Nanbaka27
I am so sorry to hear that, and know exactly how painful that is, having lost both of my grandpa's myself. But I promise that it'll be less painful, maybe not in the first week or month or even half year, but it will be easier to "deal with".
Take as much time as you need, and talk to someone if the greif becomes too much (doesn't have to be family), at least fore, it helped talking to my friends.
I hope it "gets better" soon <3