Monday - day 4/

Today have has been a the difficult day, but this is apply only only applies to my physical condition. My state of mind have is filled with satisfaction. And I have not lost enthusiasm writing yet. my enthusiasm for writing yet (You can write this sentence how you had it before, but my way is better) :) If there is whom interesting someone interested in the Russian language,don't wait, text me. :)

Monday - day 4/

Today has been a difficult day,

(or you could say "Today has been quite the difficult day")

but this is applies only to my physical condition.

My state of mind has been full of satisfaction.

(or you could say "Mentally, I am very satisfied."

And I have not lost (my) enthusiasm for writing yet. :) If there is someone interested in learning the Russian language,don't wait, text me. :)