1. Don't expect much profit. For example: You think that you will become rich by investing in a coin.
If you properly have good knowledge of the position you want to entry and you know the potential I guess you need to expect to gain profit by here, but of course takes a lot of confirmation to deal to make this happen.
3. Avoid revisiting a coin after investing. You place a sell order with a specific target.
In my cents, still ideal to visit because even you already committed a trade and can see a good opportunity for position for example you bought already and make a TP on this market or coin and still there's a potential dump after your trade you can make a small trades with it, traders always ride with the market volatility.