Some sentence need to correct that need correction.

It's so long time I haven't been a long time since I've written down something important, like get to take a trip with my friends ,or to have a dinner with my family.

<em>** "since" reverses the negative statement "haven't".</em>

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It's hard for me to keep doing the same thing.
I 'm failed my test at last a half year (last year / 6 months ago). It was embarrassed me in front of my friends. I don't want to it happen again.
I was stuck in the television.

<em>** Failure makes us stronger, not weaker. Get up and try again.</em>