The phrase "to make certain decisions" means to take action or come to a conclusion based on available information, analysis and evaluation. It involves weighing different options, considering potential outcomes and consequences, and choosing the best course of action that aligns with one's goals and objectives. The decision-making process can be influenced by various factors such as personal values, beliefs, emotions, risk tolerance, and situational constraints. Ultimately, making a certain decision involves taking responsibility for the outcome and being willing to accept the consequences of one's choices.