Refocusing step in CBT

I am trying refocussing to body parts or some other thoughts(sometimes thoughtless) when a negative or disruptive or fearful thought comes. My doubt is whenever a negative thought comes or even a negative thought is about to come or I can feel that some urge or some already thought out negative thought is there which is seeking my attention, I immediately bring myself back to current and refocus to current situation or bring myself back to thoughtless state. Till two weeks, I have been doing well but now I have a doubt in the approach which is making me thing that I am not doing it right and might be doing Thought Suppression rather than Refocussing and is causing some anxiety.

I think I know that if I decide completely that I don't want to pay attention to thought whether I am doing it fine or not, thought will weaken but it seems that I am not able to convince myself that I should not pay attention to it. My doubt is before myself bringing back from the thought, should I at least think a bit about the thought, may be just identify or name it or should I not even bother about doing all this and just bring myself back. It seems to me that is kind of thought suppression, that is I am running away from the negative thoughts in addition to focussing to current things. Is it ok to do that because I am doing it and it seems to work fine as well. But then one thought comes, that if I do it wrong it might come back again.

Please advise. Looking forward to responses!!