@BeginnerDO:
As the upper users said.
I suggest you to look at the WP Scripts, too.
The Scripts are safe, good and for free.
If you want bot, then there are some different bots.
Free Bots, and payment Bots (correct english

?)
Anyway, with the free Bots you will get warned/banned to 100%.
If you buy any Bot (for example kBot or iBot), you are 99% safe.
But not always! You can get ALWAYS banned or warned..
My opinion is, that the Bot DuckNorbitGuard is the safest and best bot.
But its really expensive...
If you have a Level 19 Account I wouldn't bot. I would use only the WP Scripts..