I survived because i have very very cheap electricity. I remember videos when many miners turned off rigs because it was un profitable.
In this bear market 30mhs will not survive only 60mhs with 120watts has chance.
many rigs were 6gpu 180mhs it was giving 3-4$ a day

Sigh, why saying that 30Mh won't survive? If 60MH at 120watts can survive why not 30MH at 60watts? Two 30MH = 60MH @ 120watt, listen to yourself mate, free electricity is free electricity and cheap electricity is cheap electricity just stop bullying those with small GPUs lol
Make research very carefully!
Last bullrun was eth hashrate top was 295TH then down to 150TH
This bullrun top was 650TH
Hasrate increased twice more than last one. Last bear 30mhs survived because it was twice easy to mine. thats why im sayin this time you will need at least 50-60mhs gpu at 100watts to be preapare if your electricity is high. like 10-20cent.
If you are saying 1660s is 60watts is not correct take watmeter and measure it. with best luck silicone you will read at least 80watts
It's always about the silicon indeed, I have two strange 1660s that take only 45watt when mining and from wall it's 65watt lol, it might sound very hard ri believe but it's true, my other 1660s take 55 to 65 watts but these two are out of this world