Greetings all,

As we know, Next month new internet plans will go into effect (some users getting it now even), and right now I'm on 2Mbit/s connection(unlimited) and here are my line's current stats:

EDIT: I have 2 lines for my house, one is for telephone only and the other( what I'm talking about) is for internet only.

I'm about 1.7KMs away from the centrale in a straight line (so probably around 2KM in real cable distance), which is why I think my Line attenuation is this high, however I think it could handle 4Mbit/s, but the problem is my SNR Margin, which is hovering around the safe level before it goes below 8 to 6 and below which might cause disconnections.

My phone cable from my house to the phone box was replaced once about 4 years ago, but I'm not sure what type of cable was used, so here's 2 pics:

https://postimg.org/image/9c36yzffh/

This is next to my modem, where the phone cable gets...I'm not sure how to say it, adapted to the other phone wire so that it can be plugged into my modem. What is the name of those 2 things used here?

Here's just a general pic of the wire:

https://postimg.org/image/ys4mofccp/

I couldn't find this type of phone wire online, but it looks to me it might be a simple parallel(untwisted) pair of wires!

Now, the wire goes from outside the room to the balcony and then down the side of the building (where I see some possible electrical wires running down as well next to it. Our previous telephone wire ran down from from the left side gap of the balcony, here's a pic:

https://postimg.org/image/5tmjvgg35/

As you can see, there's no electrical cables running along side the phone cable that's hugging the wall (and there's an adequate distance between it and the wires that might be electrical on that pipe). This wire would go down and at the bottom it would be right next to the phone box like this in pic(Red being how the old wire would get there after reaching the garage)

https://postimg.org/image/trnz5gmbx/:

My current wire, however, runs down the right side gap of the balcony, which I see has many phone and electrical wires, also an AC unit on the way, AND, from what I remember the electrician said he had it make the wire go through some room on the ground floor(Stationary)...so all this is most likely causing more noise!

So, thinking about it myself, I said I should replace this simple wire by CAT 5E, which might sound simple, but I need help figuring out how to transform the RJ-45 connection to an RJ-11 to fit in my modem

Also here's the hard part, I've noticed many posters here changed their wires on their phone boxes, but look at my building's phone box:
https://ibb.co/cbTCja

Judging from the phone cable type, I'd say the one marked in red is mine, and it would seem my untwisted wire assumption is correct unless I'm missing something here

So yea, let's assume I could get the cabling done, and I got the wire to reach the phone box, which Wires in the CAT 5E should be used to connect to the phone box (I see each line is connected by 2 wires), and wouldn't this require special tools? perhaps even a technician?

Sorry for the long post, but I wanted to make everything clear as possible, and any help would be greatly appreciated.