How to communicate better?

Hey guys, do you have any tips on tried and true methods of creating a better line of communication between you and your BF/GF? I've been bottling things up because I'm afraid that my BF will handle the issues poorly, but I'm realizing I'm resenting him for them because I'm trying to fix our issues on my own. We've talked about issues before, but gotten nowhere with them, so I want to know if you have any tips on an effective way to open up honest and productive communication! Thank you!