There is something I need to say and I keep not saying it. How do I start?

You are right that waiting often makes these conversations more daunting. Instead of searching for an ideal moment, which rarely appears, create one. A simple, direct approach is often the most effective. Try saying something like, 'There’s something from my past that I’ve been meaning to share with you, and I’ve put it off, which has made it feel heavier. I’d like to tell you about it now.' This acknowledges the delay directly, without needing to dwell on it, and sets the stage for an open discussion. You don't need to launch into the details immediately. You could follow up by asking, 'Could we find a quiet time to talk properly, perhaps this evening after dinner?' This gives both of you a chance to prepare mentally. The most important thing is to initiate the conversation, rather than waiting for it to happen organically. Sharing a part of your past, especially something you’ve hesitated about, requires courage. It’s natural to feel apprehensive, but open communication is a cornerstone of any strong relationship, particularly when families are involved in your journey and the future you are building together. While this conversation might feel difficult, the act of sharing your truth builds trust and reinforces your commitment to honesty, regardless of the specific details you choose to disclose. What and how much you share is entirely your decision, but taking the first step to open up is a powerful move towards a deeper connection.