Hi Johnny, nice to see that you are starting on trading.
1. I think a trading bot is fine, it gives us time to do other things. I think a general rule is to always take profit and not get too greedy, stick to your targer prices.
2. I personally use TradeSanta because that was what got me started, but will give CryptoHero a try as well. Do you have a link for CryptoHero that i can use?
3. I think it doesnt really matter if you are a short term trader. For example, Forextime as previoulsy mentioned might be worth a try. eToro seems to be rather popular as well.