I think that most everyone that begins a meditation practice experiences the same thing on various levels. We've been well conditioned by society to not dare to sit silently and look within. There's a couple of things in particular that we could do to help break ourselves away from these limiting mental habits. We can approach such urges and thoughts by just committing ourselves to just watch them as they arise, neither clinging to, nor attempting to push them away. Thoughts and feelings always appear, and they always pass away, and we can simply position ourselves as just the observer of these movements. Another helpful practice would be to develop the habit to "just stop" periodically throughout your day for 5 seconds; just stop, take a deep breath and become intimately aware of what is appearing to you in any given moment. I hope this helps, and feel free to reach out anytime.