How to pronounce hard and soft T in Russian

Here is an example of hard and soft 'T'. The words I pronounced are: (T is the last sound): мат - мять; плот - плоть; балет - болеть; (T is the first sound): томный - тёмный; тайна - тянет; тыква - тикать; Тула - тюль; ТЭЦ - тело.