The Prophet ﷺ heard a man supplicating without praising Allah or sending ṣalāh upon him, and said: “This one has been hasty.” Then he ﷺ taught: “When one of you prays, let him begin with praise of his Lord, then send ṣalāh upon the Prophet ﷺ, then ask for what he wishes.” (Abū Dāwūd & Tirmidhī — ṣaḥīḥ).
العربية: عن فضالة بن عبيد رضي الله عنه أنّ النبيّ ﷺ قال: «إذا صلّى أحدكم فليبدأ بتحميد ربه والثناء عليه، ثم يصلّي على النبيّ ﷺ، ثم يدعو بعدُ بما شاء». (الترمذي وصححه الألباني).
Open every duʿā with Alḥamdulillāh and ṣalāh on the Prophet ﷺ — it is closer to being answered.