How can you even compare the two, one who gave up his identity for the Bitcoin to prosper, so that it may never loose it's core values and he made the coin bigger than him, for me both are different and they can't be compared.

ETHERUM is a Alt and it always will be alt for me, we'll it's good to see its doing well but I will prefer only to stick to Bitcoin and I don't feel it shall take over bitcoins.

Well the banks are not that stupid to burn cash, instead they are now syncing in with the Bitcoin and acting as wallets, many are now offering this, there are some threads out here you can search and read about this.

You can't... There are different developer groups that have different sollutions to solve this problem, but at the moment it looks as if they're unable to reach a concensus as to which sollution they'll implement (it's a bit more complex, but it boils down to politics). As long as a sollution is not implemented, it's possible the amount of unconfirmed transactions will stay this high (the amount might even rise, or maybe it'll go down in a couple of days,.... nobody knows)
Do realise that those 114k unconfirmed transactions have very little to do with you personally. Those transactions are created by thousands of individuals (or scripts) and broadcasted to the network. Since you run bitcoin core, your wallet also receives these unconfirmed transactions and rebroadcast them...
The only downside for you personally is that so many transactions take up quite a bit of memory, and maybe they'll use some processor cycles to... A different endresult is that the fee per byte of transaction data also goes up (it's an indirect result of the amount of unconfirmed transactions)

There are 107.552 unconfirmed transactions in your mempool, consuming 107 Mb of memory.
If this bothers you, you can create a bitcoin.conf-file and enter something like
in this file. This way bitcoin core will try to keep the mempool size under 50 Mb

For you, personally, it would make a great difference. You would learn a great deal about computers and networking. Whether it is worth investing your time, only you can make a true answer.

1) Bitcoin-Qt's window getting black is due to the design decisions made by the Core developer's to keep the reference client tightly integrated. It is more of a cosmetic issue for vast majority of users who don't try to integrate with other financial software.

2) You computer is kinda crappy, from the vendor that is recently known to ship borderline-scam computers to meet marketing targets. Learn to make use of what you have or buy/assemble something better, even using older parts. Notwithstanding the above comment the reference Core client is quite well-optimized and serves as a decent hardware stress-test for CPU, memory, disks and their controllers.

3) Your network connection definitely seems sub-standard. Do you even have a real Internet connection or are you using some CG-NAT cheapie?

4) Avoid posting your actual IP address on this board. It is full of sharks who probably run all kinds of scans on your computer to find possible misconfiguration and steal your coins. There were all kinds of scammers offering remote help via TeamViewer (or similar tools) to rip people off.

The decision is really up to you.

No, it goes in the Bitcoin datadir, the same place you got the debug.log file. You can find the path to the datadir by going to Help > Debug Window in Core and find the field labeled "datadir". By default it is C:\Users\<your username>\appdata\roaming\Bitcoin

Bitcoin Core 0.14.0+ uses more RAM than previous versions, so 4 GB is not going to work very well. Try adding the following lines to your bitcoin.conf file (if it doesn't exist, just make a text file and name it bitcoin.conf and make sure it does not have a .txt extension):
Then restart Core. This will reduce RAM usage so it won't crash.

Crushes? Do you mean crashes?

Can you please post the debug.log file?

What are the specs of the machine that you are running Core on?

If the settings are correct, It should be reachable. Are you sure you have the 8333 port opened at least?

Teenagers aren't stupid.  Any resources you give them which don't descend to technical jargon will be totally fine.  The important thing is that they're actually interested enough themselves - if they're not, they won't care and no amount of explanation will make them research it more and find out what any of the terms actually mean.  You just need to convince them of the blockchain's worth and why it's so innovative, and they'll get a lot further.

You can find pretty nice information on youtube regarding cryptocurrencies and how they work. Other would be to join crypto communities for various coins and also to look here at bitcointalk.

Here are some websites that have algorithms for which crypto is best to mine right now :  http://whattomine.com , http://www.coinwarz.com/cryptocurrency

Still it won't be that easy.

If you have some coins I'd suggest maybe to find a good PoS altcoin (Proof Of Stake - they don't require mining you just earn coins by running full node depending on how many coins you have in your wallet, the more you have the more you earn).

You need to forward the port to the local machine if your router does NAT and you need to open the port on your local firewall (if any). Once you have done that and bitnodes still does not see your node, feel free to send me a PM with the IP, Ill send you a full port scan back.