What should I do about the obsessive thoughts of divorce that severely plague me, where I experience twitching of the tongue or lips, or some letters appear involuntarily, especially when watching television or recalling matches, knowing that it does not come to me in an explicit verbalization?

Divorce does not occur through whispers (waswas) and intrusive thoughts. You must ignore them and not pay them any attention. Be careful not to take them lightly, as their consequences are severe. Seek Allah's help and do not despair. Occupy your time with what benefits you in your religious and worldly affairs.