I got 6 of the D3's for the Nov batch, the ROI is going to go down but I'm praying the price of BTC keeps going up because then ROI is still huge for a payback of at least 3 months and then anything after is just pure profit.
Lucky u. Don't worry. Fluctuations belongs to this game. It wasn't many weeks ago when pure bitcoin mining was somethin $2/day. Now it's $9 and Bitcoin cash (SHA256) much more. Just patience and you will be ok !
btw. There will be a new difficulty hit nov/dec when the next batch will be activated. But again just patience and it will settle.