Monero mining is difficult for profits. GPU Nvidia mining was very low as to compare to Zcash. Lot of miners have jumped on Monero making mining quite unprofitable for small miners. I used Nanopool in both cases - Zcash was a clear winner in March'2018

Mu suggestion buy now part - if it drop to $300 buy even more.

IOTA in general has great idea Internet of Things - meaning that all devices are connected to Internet and common statistics can be gathered and used for good purpose.
In practise all is not that simple - first of all not all gadgets are connected to Internet - second all which are connected have seperate vendors managing connection. So how IOTA gonna change current picture - it has only concept without no practical application. i have heard that Bosch has invested in IOTA but still it is not enough.
IOTA need to break through huge barrier to be a worthy crypto. Currently I would not invest in that project.

Upvote without Steem Power earns nothing. In the beginning only good posts or replies can earn something. Need constant work to grow followers and post periodically.

I do all possible Airdrops - even the most craziest - who seems ver scamy to me. Those typically involve ETH wallet and Telegram. Mostly in chinese language.
I would advise using Telegram group which advertises Airdrops. There many groups which update their group with new entries. Test those entries , give stars, possible earnings, and so on. Time will only tell which is a golden airdrop and which is nothing. Prepare to have nothing and hope for the best.
My advise grow Twitter account and add as many followers as you can it is vital for many airdrops even to participate to have certain number of followers.

ETH address:
0x048054f6e13BB29c6453a12337999faAf8ebD72F

Tweet:
https://twitter.com/AndrsElsts/status/962839628029005825