You probably need to get over not wanting to discard your hand. For the most part i feel if you cant use anything in that hand now an you have extras you can rely on being in your deck or have ways of getting it back. Like super rod or dark patches. You shouldnt be too afraid to use juniper and freshen your hand. Especially if you are looking for something like a catcher or dark patch. its almost better to try your luck and use juniper and hope you get what you need. In pokemon it seems like the faster you can go through your deck the better. You get everything you need so you can overwhelm your opponent.
Like if you can get enough energy floating around your bench with enough attackers, your opponent will probably run into a scenario where no matter what they do they will lose an attacker. They can try an knock one of your pokemon out. But you still are able to move energy around and charge up another pokemon that can knock out their attacker. Sometimes they will be left with nothing if they do attack and then they will have to retreat to a sacrificial pokemon and pass. Hoping you dont have a catcher.
Like if you can get enough energy floating around your bench with enough attackers, your opponent will probably run into a scenario where no matter what they do they will lose an attacker. They can try an knock one of your pokemon out. But you still are able to move energy around and charge up another pokemon that can knock out their attacker. Sometimes they will be left with nothing if they do attack and then they will have to retreat to a sacrificial pokemon and pass. Hoping you dont have a catcher.