A New Adventure Awaits

[Mockingbird13]

I'm waiting until I'm not capsule-locked to go in, but I got the puzzle done, so I have the pickaxe, although I struggled a bit, haha. If you're having trouble...I'll try to explain my thought process a bit, in case any detail helps!
Let's see...to begin, I found it easiest to tackle the top two rows first, and then the bottom two.
(I tried starting with the bottom a few times but made the mistake of thinking that row was 12|13|14|15 when it's actually 13|14|15|blank)
So I focused on the top two rows that look like this: 1|2|3|4
________________________________________________________ 5|6|7|8
To get them sorted, I mostly focused on getting the numbers I wanted for those rows in the same area and then just kind of...shuffling them, mostly in circular patterns, until they got where I wanted. And then did the same with the bottom two.
If I think of any other way to phrase how I got the puzzle, I'll add more.
Oh, and don't be afraid to take breaks and switch to another tab or walk away for a while if you're getting frustrated. I also started over multiple times until I finally got it.