As I said in an above post, when the time comes, just hold onto those positive moments and memories. You have to. That's what gets you through. At least it did for me.
Also, if you have any photos or videos saved on your phone and/or computer, post them on social media. That way if your device shits the bed, you'll still have them. I'm so thankful I did, because I have so many pics of my doogers, and they would've been lost to time. Then again, I know the cloud is a thing, but I'm too stupid to figure out how to use it.