ripple now is very expensive, so it's hard to decide

I can't speak for people who are actually mining when I say this but I'm fairly confident that you won't be able to go very far on mining ETH because there's a lot of people moving to do that already with a lot more aggressive equipment that outpace CPUs pretty quickly in the grand scheme of things.

Mingergate isn't exactly efficient either from what I remember using it for, maybe it is fine but it wasn't necessarily exceptional in my experience. Mining a lot of the other altcoins they offer might be rewarding though.

amazon allowed to run minergate? hmm i'm so outdated on this technology. Some says minergate is legit and some says it is just a waste of time frying your GPU. I never uses a mining software to mine BTC as of now. But i'm planning to buy a rig when i get enough money to buy 4-5 of those rigs.

I've done one more check on this and I see now that I've missed something first time. Sorry about that.
So. Your transaction is https://blockchain.info/tx/d15805931bfcee8068c3f7831209b632ba6622a103fdef48afcf3f9542db8f8b

If you click onto "Show scripts & coinbase" the info will be much more, go to the start of the page.
You'll see that the sender address has a red U. If you click on that Output link, you'll go to the source of your money. And count all the U's.
There are about 12-13 of them.

That U means that the parent is unconfirmed. Meaning somebody have sent out money he doesn't have (he will have the money when a certain previous transaction gets confirmed).
So you are not waiting only for your transaction to be confirmed, there's quite a number of previous transactions to get confirmed for that too.
Again, sorry for not checking thoroughly at first. The good news is that I've read somewhere that the newest version of Bitcoin allows the transactions stay for two weeks, so you still have a chance to get yours, the bad news is that it's going to still take time... 

Accelerate your transaction. You can do it by going to the transaction accelerator tool in ViaBTC.

What exactly is 'about few day'?  I've had transactions stuck for 4 days before.  If you use a transaction accelerator and it still isn't working, see if you can resend with a higher fee.  Other people are telling you the same thing, and it would be nice if you would update us on what you did.  Else lock the thread.

One thread it enough, you don't have to post the exact same thread six times. But do I understand it correctly that you sent your Bitcoins to the wrong address? Then you should just hope that a miner doesn't add your transaction to a block. The mempool should dismiss your transaction after about 72 hours, which means you get your Bitcoins back in your wallet.

You does not give the tx id of the transaction not received. However, I have checked the address link you have given and found the one unconfirmed transaction in this address. I have now accelerated using the antpool accelerator.
If you find any issue further delay please pm me. I have tried further on viabtc. If still the transaction not confirmed.
Please take the link below to use the transaction accelerated and you need to sign up there do.
https://www.antpool.com/user/prioritiseTransaction.htm?m=savePrioritiseTx

If you have decent amount of money I'd suggest Ethereum, if not - Ripple (it costs a few bucks but grows fast).

I suggest you can choose ethereum or litecoin. This two coins have potential in the market although the price is not too low but im sure this coins have future when you hold it for years.

Check your watch and try again at the hour I mentioned; it's the only second in each hour you can have a chance.
Using an atomic clock could be also helpful.

You can check here: https://btc.com/stats/unconfirmed-tx
A good fee is 185 sat/byte. Your transaction has some 99 sat/byte.
So there are about 22-23 MB of transactions to be processed before yours. And the transactions that pay more than your transaction, even if will be placed after yours, may be confirmed before yours because of the higher fee.
So.. it's hard to tell how long will it take. The fee is not very low, but it's pretty low.
If you are in a hurry, try your luck at xx:00:00 (or even xx:59:59) at https://pool.viabtc.com/tools/txaccelerator/ with your tx d15805931bfcee8068c3f7831209b632ba6622a103fdef48afcf3f9542db8f8b
But keep in mind that many try that nowadays.