Welcome on board
I'm glad you like the info posted here and wish you success in your journey.
Taking it slowly is a good thing, you don't want to start aggressively. All accounts need warming up,doesn't matter if they're 3 months or 1 year old.
Regarding .ru mails... Some users had issues, some didn't but the fact is most spammers are using these emails to create accounts and social networks are probably aware of it.