请帮个忙，帮我翻译一下这些话，是我朋友对我说的，谢谢，一定要最准确的

there're so many things that have no explanation.
there's so much feelings we can't control
there's nothing I can do but change myself

I know I can and certainly I'll conquer
I'm quite sure that if I want I will achieve
Like all my friends
You can, too

My best wishes to you----my dear M
I know it's taugh to do the opporation!
We will comply with you whatever you have to face or wherever you are!
Nothing is impossible!
Do remember we are your friends in the past and now and forever!
No matter what you said to me. I don't care all the possible bad things! I and we are just care about you!
YOU WILL NEVER ALONE COS WE ARE ALL HERE AND ALL THERE IN YOUR HEART!

LOVE YOU!
ALL OF YOU!

DON'T BE UPSET
DON'T CRY

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