Talk with your sibling
Talking about why you’re frustrated with your sibling can help you gain some insight on the situation, help them understand where you’re coming from, and can give you a chance to hear their side of the story.
If you accept the present moment, you can let go of resistance. If you let yourself cry it out, you can let go of sadness. These things can help you find more peace.
If you empathise with someone who hurt you, you can let go of bitterness. If you understand someone who annoys you, you can let go of judgment. If you have compassion for yourself, you can let go of self-recrimination.