Samson was smart. So WHY did he succumb to Delilah. All humans have temptations. We increase our vulnerability by feeding the temptation by what we read and watch. Samson kept hanging around Delilah.
Sin is more like a sliding board than a sudden cliff.
Eventually we get going so fast we cannot stop. The initial decision often determines the outcome. Carefully make decisions, always taking Jesus with you. Samson consistently chose wrong friends and they led him down to ruin. Nothing molds character more than who we choose to spend time with.