Used to get alot more 2 day bans like a year ago.
I would probably say train a main, do some quests( the harder the better), i also bot at sand crabs. My account was relatively new(max 10 days). I didnt do any goldfarming methods straight away. First i trained combat, i did quests for convineince(fairy rings). i got a 2 day ban and 7 days later i got a perm ban. Was botting low profile, no nightly botting without supervision. Jagex seems to have advanced alot, maybe even too much. Ah well, better luck next time. Btw it all happened on a thursday
If you only bot very profitable things, dont be amazed that you get 1hit.
Unless you have an older account, atleast 1 month old, then you can probably do whatever.
F2P bans are always perm i think.