EXHAUSTED

This has been my feeling lately. I had been feeling so exhausted, this is something that had never occured or I should say never happened to me before.
As I had mentioned before about the departure of my colleague, most of the her work is now on my shoulder. It also looks like there will no replacement in the near future, which means I will still have to bite the bullet and hang on.
As I am busy like a bee in the office, I also feel so stressed up at home. My mil had singing lessons every Wed, which means I have to rush home on time. So that she can go for her lessons whereas Hubby can take his own sweet time to come back home. I even have to come back home with him on the days does not work late. It is just strange that why do mummy has to do all the rushing home and taking of the kids or taking over from mil while the daddy can just work or come home the time they want.
I have been living my life in this way for the past close to 2 months. I really do not know how long can I still hang on. I really don't mind the extra work in the office, at least I felt appreciated by my boss. But when I'm home, sometimes I just need some understanding from mil and most importantly Hubby. They might be understanding on some way and may be I did not notice it at all but I do not feel the understanding at all. Hai... That is so sad isn't it!
I really do not know what to say and what to write. I have lots of thoughts and feels about what had happened to me, I just do not have the time to pen them down. When will I be the same old me again????? Someone save me..... or rather... can someone understand my plight????