Acknowledge to your self that you are ready to say it. If you have yourself convinced that you are indeed ready, when the time comes you won’t need to syke yourself into doing it. NEVER plan what you are going to say. It might come off rehearsed and too wordy.
Be simple. The phrase “I love you” is as precise as you can get. Any extra words may make it seem like you have to validate why you love them. If you must add on, keep it short and sweet. “I love you more than I could ever love anything, and it amazes me” is better than “I love you so much! I could spend the rest of my life with you. We’re perfect together.”
Be prepared for the worst-rejection. It does happen and unfortunately it does for most of us at one point or another. And let’s face it, rejection hurts. The most you can do in this situation is remember that you love them, no matter what. They may need time, or they may never love you at all. Either way love is better said truthfully than said because of pity or guilt. Be happy they didn’t lie. And remember, if they don’t love you there’s someone out there who will give you all the unconditional love you need! Happy hunting!