How can I balance my solar plexus chakra without getting overwhelmed?

I've been working on balancing my solar plexus chakra with breathwork and guided meditations. But whenever I get deep, I feel overwhelmed emotionally. It's like all the hurt anger and fear that I've bottled up in me rush up at the same time. I want to feel empowered and not overwhelmed. How can I balance my solar plexus chakra without getting overwhelmed?