Kinda new to chess, serious struggles with vision.

I know basic opening principles and basic strategy, but I always get tunnel vision and I easily miss ranged pieces attacking from the extremes of the board (Even when doing tactics puzzles). Is vision of the entire board something that improves over time or should I continue solving as many puzzles as possible to improve?

Yes, but you have to consciously work on getting better at it. Being aware of it and posting about it is a good sign.

Yeah, that's one of the way you can work on improving it.

At the beginning of a puzzle, one thing I would do when I was new to chess, is for all of my rooks, queen, and bishops, I would trace their movement paths with my eyes across the whole board. Even if it was through other pieces.

For example here are some arrows showing the queen and one of the rooks.

That way I forced myself to be aware of how a far away piece might be close to influencing something I'm interested in attacking.

Hi,

My suggestion is keep solving puzzles and think about your technique.

This is something I've been working on. I started playing chess in January this year so I'm a beginner. My chess.com rating is around 1300. I use the chess.com tactics tool to develop my technique. I try to solve at least 5 puzzles every day. I ignore the clock as I want to develop the right technique.

On tactic puzzles I look at all the opponents Checks, Captures, and Threats first. This means I pickup the long range piece attacks. Generally, it doesn't help me solve the puzzle, but I'm trying to use my puzzle work to develop good habits as well as tactical vision.

After looking at my opponents CCT, I then look at my CCT, then I solve the puzzle. After solving the puzzle, I look at the position and think about what I might do next (if its not a checkmate), then check what the engine thinks. All this means each puzzle can take 5 or more minutes (can take 20 minutes if I can't see the solution), but I get a lot out of it.

However, I find transferring this discipline into actual game play isn't easy because I always get drawn into the game and forget to apply the discipline. I'm getting better at this though and after 4-months I'm starting to feel the improvements coming through. My calculation is getting much better.

If llama44's position was a tactics puzzle, for Captures my thought process would be something like:

Nxf6+ but I have Bxf6 defending g5 square and adding a defender to e5.

Nxe5 but I have dxe5 or Nxe5. dxe5 exposes my queen to a discovered attack on the d file if white plays Rd1 and moves the Knight.

Nxe7, but I have queen takes or Knight takes. 

Qxa6 is met by pawn takes. Qxc6 but I have three defenders on this piece.

I just quickly itemise my opponents captures and my defensive resources (spots undefended pieces). Takes less than 30 seconds. I then go through them again but consider them in more detail, this is where I may spot the potential discovered attack for example. The reason I quickly itemise first is to cover the whole board, get my subconscious working on the problem, and keep me aware of where everything is.

And I just got a First Word achievement for this post

My first post.

Learn this game off by heart and then before you go to sleep play it in your head.
This will help with visualisation.

Yes.  It will improve with time (from playing, practicing, studying etc.)

https://www.chess.com/blog/RussBell

And then your second post was a celebration of your first! Haha love it, good job mate.

Oh, and the point in replying was to say I actually started out doing exactly as you described - using those puzzles can really help you in a fair few ways

As others have said, it does come with time and more puzzles. Chess.com's vision practice is also great at helping you improve. This is found at https://www.chess.com/vision. Don't forget to switch the training mode to "Moves" and switch between white and black. The default "Coordinates" mode is helpful as well. You can even do both at once.