I love to see the cherry blossoms. But lately I've had a different feeling. Now I realize how short my life is and how uncertain I am. Who knows if I'll see the cherry blossoms again a year from now? I never thought about it when I was young.

I love to see the cherry blossoms. But lately I've had a different feeling. Now I realize how short my life is and how uncertain I am. Who knows if I'll see the cherry blossoms again a year from now? I never thought about it when I was young. For the most part this is grammatically correct, but at times your tense choice sounds a bit unnatural. I have always loved to see the cherry blossom, but lately I’ve had a different feeling. I now realise how short my life is, and how uncertain it is. Who knows if I will see the cherry blossom a year from now. I never thought about this before. Also you may want to change lately I’ve had a different feeling To Lately my feelings have changed Both are correct but changing the subject makes the text a bit more interesting. All in all, this is a super fun text. Conveys some cool ideas and was fun to think about, thank you. If you have any questions let me know :)