Today is the 97th day of my daily English challenge. Today is the 97th day of my daily English challenge.

or Today is Day 97 of my daily English challenge.

Today is the 97 day 97 of my daily English challenge. Today is the day 97 of my daily English challenge.

Today I called my mother to knowhear of her news and that of the children, too. Today I called my mother to hear of her news and that of the children, too.

This is more natural in the US: Today I called my mother to hear how she and the children are doing.

Today I called my mother to knask how sher news and the children tooare doing. Today I called my mother to ask how she and the children are doing.

not sure what you wanted to say but this sounds more natural.

She thanksed me tofor care abouting for her and the children. She thanked me for caring for her and the children.

This is past tense.

She thanks me tofor careing about her and the children. She thanks me for caring about her and the children.

She thanksed me to care about her and the childrefor my concern. She thanked me for my concern.

Someone else already corrected your grammar. However, I think this sentence^^ is more natural.

I want to tookake a rest because I feel very tired, T and then tomorrow I will be starting reviewing my English lessons. I want to take a rest because I feel very tired and then tomorrow I will start reviewing my English lessons.

or, I want to take a rest because I feel very tired. Then tomorrow I will start reviewing my English lessons.

I want to took rest because I feel very tired,. Then tomorrow I will be starting reviewing my English lessons. I want to rest because I feel very tired. Tomorrow I will start reviewing my English lessons.