I didn't play it myself but I saw how streamer played this slot and it was giving money again and again and couldn't stop for like half an hour. Yeah it didn't give much but it pays like 50x-200x
I think 1000x plinko ball is easier to hit than keno 9 or 10 from 9/10. But keno plays good with upper bets and such things you know, plinko is not the game for raising the bet, it can give too many 0.2-0.5 in a row without even 5x
Play responsibly is the main advice. Make limits for yourself, better not start to play live games, they are very tricky. Many gamblers lost a lot exactly at live not in slots. And I guess don't play too often originals, play slots sometimes
Keno on medium level with maximum amount of numbers would be good, sometimes just raise the bet until you hit some decent win and than make it lower again. I guess it should help
As I know it is not normal that you wait so long. There is high delay for BTC withdrawals and deposits like up to an hour or so. You should better ask in support about it
I don't know any strategies to tell you. But from Hacksaw I like Duel at Dawn slot, Aztec Twist, Donny Dough and Rotten. Outsourced was giving some in spins, but I recommend you to try different slots from nolimit, for example D-Day, Serial, etc