Anyone who Trades walks a fine line...
The distinction between trading and gambling is a difficult one because it can be a matter of perspective. Most who would be considered gamblers are very emotional and cant remove the emotion when executing a trade or trying to decide on whether they should sell, buy or HODL.
The lines between the two can be construed and the goals posts can be pushed further back.
The main thing for me to differentiate my strategy is being able to remove emotion from the equation and making my decision based on fundamental analysis of what it is I am about to do rather than thinking about what I want to happen.