For new people, avoid automation as of now. Learning trading from the spot markets and once you are confident, you can slowly and gradually move towards automation with minimum test funds. Do not trust any random bot though or else that would be the easiest way to lose all your money or possibly compromise the security of your trading account.
Indeed bots are not supposed to make trades always profitable, they will make the process fast and easier to execute, nobody should buy a bot with hopes that they can make profitable trades than a human can, because its not so.
Most of the trading happening is automated nowadays by groups of people which one individual might find difficult to compete against. But solo trading is also possible, becomes easier if you are doing mid-long term trading with buying points being very low and selling points at all time highs.
The process wont make you rich overnight but can add a decent chunk into your existing stash of coins.