I often say that positive thinking is important and affirm a strong conviction in the idea that "attitude is everything." There's no doubt that a person's mindset is significant, and to an underestimated degree. When we say to ourselves, "I can" versus "I can't" - that matters. Big time. But what do you, deep down, truly believe? You can?...or you can't?
Thoughts in and of themselves are USELESS. However, when followed by and meshed with action, it is then, and only then, that our thoughts become the powerful force which creates our reality, which is how we are perceived and what we receive in conjunction with how we perceive ourselves and what we end up giving to the world.
When I am anxious or depressed, thinking to myself, or being told, "everything's going to be okay" does absolutely nothing. In some cases, in actually makes me feel worse. Can you relate?
However, when I act in accordance with this thought, then I begin to believe it is true. Once I begin to believe it's true, it becomes my reality.
So for instance, if I am feeling anxious about a job interview I am about to have, it's usually because I'm not acting as if everything is okay. I tense my shoulders; I let my mind run amuck. Through self-awareness, I notice that I am doing these things and then change. I start loosening my shoulders and focusing my mind on my breath. Almost immediately, my anxiety level plummets. If I simply think to myself, "everything's going to be okay" nothing changes! In fact, it makes things worse by creating cognitive dissonance.
Remember, you are in control of your life!