Well, math just speaks for itself.
You argue that in 2 years you've made 10-20 btcs mining with just 2 vga's with shitcoins. You now own a single rig of 1070's.. something's not right, because it should have been much more. I suppose that you've got some screenshots to proove your statements.
With an avg value of btc of 300$ in 2 years (365*2=730 days), 2 vga's (what tipology?), these are the calculations:
-10 btc's= 3000$. 3000/730= 4.1$/day, that /2= 2.05$/day/VGA
-20 btc's= 6000$. 6000/730= 8.2$/day, that /2= 4.10$/day/VGA
I suppose that we're talking of a couple of gtx 970/980Ti, as you can see this isn't much.
Considering the italian power consumption cost of 0.24 EUR/KWh, with a general mining scenario (not instamining):
GTX 970: 165W TDP, avg I suppose 140W (x11&variants, scrypt-n, blake, scrypt, cryptonote, ecc.). *2=0.28KWh. 0.28*24h*1.15eur/usd avg*0.24 eur/KWh= 1.8547 usd/day for both of them. *730days= 1353$ spent due power consumption. In BTC's 1353/300= 4.51.
GTX 980Ti: 260W TDP, avg I suppose 230W (x11&variants, scrypt-n, blake, scrypt, cryptonote, ecc.). *2=0.46KWh. 0.46*24h*1.15eur/usd avg*0.24 eur/KWh= 3.047 usd/day for both of them. *730days= 2225$ spent due power consumption. In BTC's 2225/300= 7.41
With a couple of GTX 970 he should have earned, based on his calculations, 10-4.51=5.49*300=1647/730=2.25$, that divived 2 it's 1.15 usd/GTX 970/day. With the second scenario, 20-4.51= 15.49*300= 4647/730=6.36$, that divided 2 it's 3.18 usd/GTX 970/day.
Considering instead a couple of GTX 980Ti he should have earned 10-7.41= 2.59*300=777/730=1.064$, that divided 2 it's 0.53$/ GTX 980Ti/day. With the second scenario, 20-7.41= 12.59*300= 3777/730=5.1739$, that divided 2 it's 2.59$/GTX 980Ti/day.
Raw calculations, now it's time to proove them with screenshots, putting proofs in from of your speechs
. With instamining and general mining, I hope that you earnt more than this misery, otherwise you've wasted your time. Combined, with 970's and 980Ti's you should have earnt at least 15/25 BTC's, if not at least from 20 to 40.
What I don't understand it's not how much you've made with instamining with 1/2 minutes on shitcoins, it's why you just had 2 vga's. This is incompatible with your statements. If you've found a gold mine and you try speculating it by starting mining, alone, with just a single pickaxe in 2 years, instead of starting a mining company, we've got 3 things: 1) you don't know how to manage such things 2) you're lying 3) your calculations are way off