I drink unsweetened almond milk and eat almond at night. Will it help me lose weight?

It depends what you substitute the almonds for- if you choose almonds instead of sugar snacks or floury foods then it will probably help you lose weight. But if you eat almonds additionally to your normal way of eating then it might make things worse. Almonds have more protein and fats than carbs, so they are a good alternative to use as a flour substitute, but they do still have some carbs, so don't overdo it with the almonds. :-)