I recommend if anything to try and use paid scripts to give you a chance of surviving. But if you're situation can't afford it try doing some services to sell for money then buy the paid scripts. Free to use scripts are nice but I feel like they are more easily detected. Good luck!
You got caught once with your hand in the cookie jar. If you get caught again it's going to be a perma. The only precaution you can take is say using a private script but you will get caught eventually. If you want a high Slayer level with less of a chance of getting banned use a service provider. @Saad has a good one
I think you meant to post this in the wrong section if you're offering to make these accounts from scratch, or unless you're trying to get people to train your accounts. If you're doing a service it should be posted underneath Markets -> Services
Was the account f2p? Because typically accounts that aren't p2p don't usually last long. And the other account could be detected or under review and has yet to receive a ban and may receive one later.
First, you can stop botting now to save you the trouble, time and money to get a method down. But you can read up here if you want to continue trying your luck.
Paid scripts will potentially get you further then free ones your results may vary lol
You have to put it into an IDE like eclipse or IntelliJ and then compile it as a jar then put it into your OSbot folder. Not guarantee the code is safe/usable so gl