House wives/husbanda/stay at home parents

I've been working part time since April, its been great, doing chores in the morning, working, having dinner then relaxing, but I have to look for a full time job because my partner and I are getting married and buying a house in march, and this week/last week I've been covering some hours, thus working full time, and have found I'm so tired when I get home?

How do people manage and family, and house work and cooking etc?

I live in a flat with others but they are lazy, I do all the cleaning