[beginner's diary] Hashflare discount?

I came to know coins last year. I am interested it can be mined by internet. I have a hashflare at the end of January. The start was minimal. Initial investment was $220. It was worth $470 a year later at that time. It was not bad.

Yesterday, an email from Hashflare came.
"Best price for SHA-256 and Scrypt!"
$ 1.20 for SHA-256 10 GH / s

When I bought it in January, it was $ 2.20, Shit!
How much is mined? I've been logging in to Hashflair. At first I purchased 1Th/s, which is increased to 1.14 TH/s, the result of reinvestment. The mining has been successful in four days.

One year later, projected profit fell to $244. OMG. I invested $ 220.
If the price of the bitcoin falls further, it will be difficult to get it.
What if you buy a discounted $ 1.20? I don't know.