Unhappy

Even though I think a lot, there are some problems that I can do nothing to resolve. So I feel bored. What is wrong with me? Maybe I worry too much about myself. I feel as though the time has stopped.

Unhappy

I think a lot ,but some problom that I could do nothing to resolve them ,so I feel boring .What is the matter with me ? Maybe I think myself a lot ,too much care for me ,maybe. Sometimes I feel time stops ,

Perhaps:

Despite a lot of thought, there are some problems that I can do nothing to (re)solve, so I feel bored (or frustrated?). What is the matter with me? Maybe I think about (or to?) myself too much.  Maybe I am too (self-absorbed?) Sometimes I feel time stops.

I'm not sure of your precise meaning, so I suggest some alternative words.  Sorry if you aren't feeling serene and happy :( 

Unhappy

I think a lot about certain issues, but I cannot resolve some problems that I could do nothing to resolve them, so I and it makes me feel boring unhappy. What is the matter with me? Maybe I think myself a lot too much, too much care for me ,maybe or perhaps I care too much. Sometimes I feel that time stops.

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Good entry! Try to deliver your message more simply. Also remember to use proper spacing between punctuation.

Unhappy

I think a lot ,I AM HAVEING PROBLMES .I could do nothing to resolve them ,so I feel boRED.What'S WRONG with me ? Maybe I think myself a lot, CARING TOO MUCH MYSELF