Why I keep repeating the same mistakes?

I am new to Tibetan Buddhism and I am fascinated by it. One thing that bothers me in general is that I keep making the same mistakes. For example, every now and then I find myself procrastinating which has harmed me a lot. I came to know how cognitive psychology and neuroscience explain this behavior. It's the neural patterns that is hard wired in my brain because how I have been reacting to situations for a long time. Neurons that fire together wire together. But how Tibetan Buddhism addresses this issue? I heard from Khenpo Sherab Sangpo understanding a teaching intellectually and experiencing the teaching is two different things which made me think that there must be a spiritual aspect of this problem. I would really appreciate it if someone can help me see the spiritual side of this. Thanks!