Too many people get way to obsessed about buying new gear to get better. Or they think simply having a firearm is a magical wand that whisps away all danger. Or even worse, their pride inhibits their practice because they only practice what they’re good at and don’t ever try anything new.
Practice is the key to getting better.
Not just practice, but “deliberate practice” is the key to getting better.
The above linked article provides strategies on how to practice deliberately, which will maximize the effectiveness of the training you do take on.