I want to start mining. Please help me with a couple of newbie questions.

My friend convinced me I should start mining. Electricity here is 0.05-6 per kilowatt hour, so not that expensive. I think it's a good idea. However, I have some concerns about the future..

What are some of your projections for 2018?

I feel like everyone's jumping on the mining bandwagon. Is in theory this a bad thing? Will mining get harder/less profitable because of it?

I'm not going to invest hard, I'll just buy a couple of 1070ti's and hope I get the return on them in 3 months. I'm…

I want to start mining. Please help me with a couple of newbie questions.