My favorite place the green park = My favorite place is the green park.
Explanation: Missing verb “is.”

Because we are always have a walk with my puppy in the morning = Because we always took a walk with my puppy in the morning.
Explanation: Removed “are”; changed verb to past tense for a past habit.

But now we don't live together I am so sad. = But now we don't live together, so I am very sad.
Explanation: Added a comma and “so” to connect the ideas naturally.

So I'm going with my husband these days = So I go there with my husband these days.
Explanation: “going” = “go” for a regular habit; added “there” for clarity.

Good job! Your feelings come through clearly, and your message is very natural. Just a few grammar fixes, keep going, you’re doing great 💛