As others have said I think it'll probably take quite a bit of investment and a few more accounts to get to 1b a month, good goal to have though! It's like 33 mill per day, so by that point it would be a decent sized farm but the good news is the more bots you have, the cheaper each one is since your overheads are split over more bots
Good luck!
Also would try and keep your main out of things, quite risky to mule gold there. One idea would be to sell the gold for crypto, and then once you've accumulated enough use someone on here to buy the gold on your main?