Welcome to HCM
As you are suffering from hypothyroidism
that means your body is not producing Thyroid hormone ,you need to take it from outside in the form of Tab.Eltroxin
Your report with high TSH suggest inadequate supplimentation.
The only way to correct it is to take right dose regularly so kindly consult a Endocrinologist
and get the dosage of the drug adjusted and after regular intake of medicine kindly recheck your TSH level
Take Iodized salt in the diet .
Your thyroid should come in control in some time but remember to take your tab daily and continuously.
Best of helth to you.