Unity 2D references and grappling hook

So i have been developing this game in 2D and i wanted it to have a grappling hook yet i dont know how to create one at all, since i just started developing in my room as a little passion of mine and i wanted to know if anyone could help me with creating a grappling hook that pulls the player towards a wall and cancels as soon as you click again on the screen. If any videos about it or any code that could help me, everything is accepted.

The second issue I'm having is finding a way to create a middle line, so that If let's say i want to grapple to a wall to the left i would click on the left side of the screen and the character facing the player would use his left arm and would pull in that direction and if he clicked on the right side of this middle line he would grapple to the right using his right arm. But I can't find any guide or help that creates such a reference.

So desperate and new to all this, I ask for advise. And if you have general advise for begginers, ill take it, also if you think it's a lot for a first own idea to implant such mechanics and should try a more simple idea. I'm open for advise.
p.s. this are the only mechanics in the game.

 

Me neither! Fortunately there are Youtube tutorials... LOTS of them. Thousands. Go do them. Go do lots of them. See below to make sure you aren't wasting your time by doing them incorrectly.

Ask yourself again and again, in small tiny steps you can answer YES to, "Can I...?"

Imphenzia: How Did I Learn To Make Games:

Tutorials and example code are great, but keep this in mind to maximize your success and minimize your frustration:

How to do tutorials properly, two (2) simple steps to success:

Tutorials are a GREAT idea. Tutorials should be used this way:

Step 1. Follow the tutorial and do every single step of the tutorial 100% precisely the way it is shown. Even the slightest deviation (even a single character!) generally ends in disaster. That's how software engineering works. Every step must be taken, every single letter must be spelled, capitalized, punctuated and spaced (or not spaced) properly, literally NOTHING can be omitted or skipped.

Fortunately this is the easiest part to get right: Be a robot. Don't make any mistakes.
BE PERFECT IN EVERYTHING YOU DO HERE!!

If you get any errors, learn how to read the error code and fix your error. Google is your friend here. Do NOT continue until you fix your error. Your error will probably be somewhere near the parenthesis numbers (line and character position) in the file. It is almost CERTAINLY your typo causing the error, so look again and fix it.

Step 2. Go back and work through every part of the tutorial again, and this time explain it to your doggie. See how I am doing that in my avatar picture? If you have no dog, explain it to your house plant. If you are unable to explain any part of it, STOP. DO NOT PROCEED. Now go learn how that part works. Read the documentation on the functions involved. Go back to the tutorial and try to figure out WHY they did that. This is the part that takes a LOT of time when you are new. It might take days or weeks to work through a single 5-minute tutorial. Stick with it. You will learn.

Step 2 is the part everybody seems to miss. Without Step 2 you are simply a code-typing monkey and outside of the specific tutorial you did, you will be completely lost. If you want to learn, you MUST do Step 2.

Of course, all this presupposes no errors in the tutorial. For certain tutorial makers (like Unity, Brackeys, Imphenzia, Sebastian Lague) this is usually the case. For some other less-well-known content creators, this is less true. Read the comments on the video: did anyone have issues like you did? If there's an error, you will NEVER be the first guy to find it.

Beyond that, Step 3, 4, 5 and 6 become easy because you already understand!

 

I searched for a while but they we're all not doing what i tried to create so i just stopped with that and thats also the reason i think i will try it a little more and then just move on and explore more. Try more coding and take little steps to progress by asking myself the question. Can I...?(Thanks for the tip)

I also appriciate the advise, but when you say document yourself on how that part works to what extend does it mean to go. I do like to understand why something works the way it does but I feel like I would not make a lot experience by just going in depth within one sole code. I hope you understand what i mean.

Other than that thanks for the advise, i will apply it also thanks for the youtube suggestion other then brackeys and ofcourse unity I didnt know anyone.
Also I think my plant will start to hate me if I start explaining stuff

 

Or rather I don't understand STEP 2 completely