It's a constant dilemma: If you want to reinvest the money, there's limits to how well you can protect the profits and still keep a potential upside. To the downside, it should be easier, just close/scale-out whenever position is beyond your conditions for the trade.
Trade management is part of your edge, so work on getting an edge, if you want consistency. To gain money you need to risk money. You can keep head spinning or do the work, and it will take much longer time than you anticipate and nothing will ever feel 100% certain in this game, far from it.
Speaking generally here as I don't know options.