Hi Salla
Do you live in Sheffield? If so, come to my house for a coffee and I'll spend hours telling you why what you're doing is great. And I'll tell you all the skills you're gathering for when you do go back to work (if you decide to go back).
And do you know how jealous lots of people will be about the fact that you can stay at home and look after your kids? That you can do the playdates? That you don't have to work??
If it's really making you unhappy being at home, you need to figure out why. Do you want more to do? Do you want to train or tax your brain in some way?
I must confess I'm not a 100% go ahead type. I don't have much sticking power for anything these days (probably from being at home so much) and so I don't fancy training. But I did do a volunteer reading course and now I help kids at my daughters school who are struggling with their reading. It's really good fun and I feel like I'm doing something useful. Have you considered something like that?
I'm comfy in my own skin right now, which is kind of handy as SAHMs do sometimes get a bit of stick BUT don't let the negative press pull you down. You're doing a very valuable job right now.
If it's not enough for you, you need to find something else...not necessarily work, but how about retraning? volunteering?
CAT me if you want to talk further. It sounds like you could do with an ear??