'With the Combination of medication and counselling' is this sentence understandable?

Is this sentence understandable? Any grammar error?

With the Combination of medication and counselling by using Cognitive Behaviour Therapy (CBT), that is the most effective treatment for problem gambling because CBT changes distorted thought patterns and viewpoints from negative life experiences.

Maybe instead you can rearrange the sentence to:

By using the combination of medication and counseling through Cognitive Behavior Therapy (CBT), this creates the most effective treatment for problem gambling; since CBT changes distorted thought patterns and viewpoints from negative life experiences.

Hope this helps.

A combination of medication and counselling by using Cognitive Behaviour Therapy (CBT) is the most effective treatment for problem gambling, because CBT changes distorted thought patterns and viewpoints from negative life experiences into manageable responses.