There is a bot called SV. you can pay it if u want, but you can also crack it following this link

credit to anantasia
Met zone is not a good place to bot( i think), becaue there are too many people botting there and too many bot hunters there. ITs very risky. For your 2nd question, you may do quest such as bluemouse or moonbox which can get you a good profit if u have SV, Cotobo and other hacking tools such as Qoproxy. SV does have a healing function.