Greed is an emotion that grows when you feed more into it. By staring at the charts 24/7, you're simply feeding into your greed each minute you spent staring at those charts.
Solution? Mark down your price zones that you are interested in trading, set up price alerts when price goes to your intended range, setup a timer for 30 minutes, if price action behaves according to your strategy, enter a position, setup the ideal SL and TP, close the charts and setup another 1 hour timer before looking at the charts again.
Counter your inner desires of seeking out more entry opportunities by doing other things that provide your with alternative sources of dopamine, like go grab your favorite dessert, or play a game.
Hope this helps, and always remember that trading is a marathon, not a sprint. Please, for god sake, don't risk more than 3% of your total capital in a day. If you like to open multiple positions and scalp, divide your total capital risk % from 3% into 0.3% positions and you can take up to 10 positions if you wish.
All the best with your trading journey
SIA