Welcome Lillian. If your T is mild, count that as a blessing. Positivity will help reduce anxiety level. Anxiety and panic disorders have been my friends for a few decades before T & H came to town. So I know quite a bit about anxiety and its symptoms, and how to deal with them.
CBT and mindfulness are known to help people with anxiety. I learn from CBT the concept of cognitive distortions and how they, if not challenged and countered, can wreck havoc on the mental stability of its victims. The most obvious cognitive distortion which applies to many T sufferers is 'Catastrophic Thinking', like saying 'my future is bleak' or 'I am doomed for life', or 'I have no future with T'. The other notable distortion is 'All or Nothing Thinking', like saying 'with T, my life is not worth living' (ignoring all the other positives of life). We need to learn about cognitive distortions and challenge them, replacing them with more positive or realistic ones. If you read Dr. Hubbard's success story, you will see how he applies CBT techniques to help heal himself.
The other major approach against anxiety is Mindfulness. If you search youtube on that, you will find many videos talking and illustrating how mindfulness meditation can help diffuse anxious feelings by bringing the anxious sensations into 'present awareness', by facing them instead of running away from them.
For me, I do many other things to diffuse anxiety, like abdominal breathing, like taking leisure or brisk walk, like pursuing hobbies, like spending time with families etc. These can distract from paying attention to T and anxiety as well has helping the physical and mental health. You can also try drinking some chamomile tea to calm your nerve. Try these natural drinks to help with anxiety before you have to resort to meds as a last resort.
For dealing with anxiety on the spot, I also do mental maths when I feel anxious, like mentally calculating the result of say, adding odd numbers from 1, like 1+3=4+5=9+7=16+9=25+11=36+13=49 etc. etc. If you want it difficult so the mind has to work hard, try deducting odd numbers from 1000, like 1000-1=999-3=996-5=991-7=984-9=975-13=962 etc. etc. The objective is to take the mind off the anxious thinking and focus on a non-anxious thing like a math calculation. Whatever calculation you can handle and can distract the mind will work to get the mind off from wandering anxiously. If math is boring, then try sing the lyric of some songs you like. Remember to sing the words either vocally or silently. I also find this approach easy to get the mind off anxious things. Try them.