Marry, the best way is to first check if your photos are backed up—like on your phone’s cloud or a computer. If not, some apps can help recover recently deleted photos, but they might not get everything back, especially if overwritten. For important pictures, it’s safer to stop using the device immediately to avoid overwriting. Then try trusted recovery apps or consult a professional. Always back up photos regularly to avoid such troubles. Keep it simple: prevention is better than cure.