Tired ness , nausa, weakness and moodiness

Please help!! I am on week 5 and 5 days of baby no.2

I am sooo tired , nauseas morning to night, so weak and this is making me very moody.

My first baby I had terrible

Morning sickness (feel sick, be sick, carry on with your day) but this time I just feel wiped out all day.

Any suggestions ? I am also dealing with a 13 month old baby as wellz