She is a trusted friend, who also cares and accepts me with all my best and worst sides.
This (above) is very good, but I had to make those 2 small changes.
Plural: Friends are pretty important
parts ...
Friends are pretty important parts of most people's lives.
I have a good friend of mine, a girl, who I am very close too.
She can tell everything to me, and she is a wonderful person who cares and accepts me with all my best and worst attributes.
She makes me laugh all the time.
Many of my favorite memories are of times spent with her.
I still remember when I broke up with my girlfriend, and I felt alone, so she came and stood by me and listened to me talking about my feelings.
Practice these correct sentences. Type them 10 times! If you type each sentence correctly 10 times, you will reprogram your brain and improve your skill. Each time you type a sentence, speak it aloud, too!. :-)