feeling a bit useless

[user1494101503]

My child started school in septmeber
Husband works full time. I work 3 days a week (including saturdays)
im home 3 days a week by myself. i do the housework and sort tea but apart from that, thats it.
Id like to work more hours but currently none going in work which is so frustrating as we could really do with extra money!
I just feel so guilty while my husbands at work all day and im just reading or watching tv
I cant change job as my current one works well for collecting daughter from school.

anyone else feel a bit lost and useless while your kids are at school?