"Los únicos límites para las posibilidades en tu vida mañana son los "peros" que uses hoy."

Simplified Meaning:

When you say "but" today, like "I want to start a new job, but I'm too scared," you are creating a barrier for yourself in the future. These excuses stop you from trying new things or improving your life. For example, if someone always thinks, "I'd love to learn to cook, but I'm too busy," then they will never start cooking and miss out on that possibility. To have more opportunities tomorrow, try to change your thinking. Instead of saying, "I want to travel, but I don't have money," try saying, "I want to travel, so I will start saving money." This change in mindset helps you take action and opens up more chances for you. This advice is about removing excuses and taking steps towards your goals. By focusing on solutions instead of problems, you can do more and achieve more in your future.