2 week holiday without my children

[TRIXY1990]

Hello!

This is the first post I have written but am after a bit of advice if possible.
My cousin is getting married in Australia next year and me, my partner and 2 children aged 10 and 5 had been invited, but we had to decline the invitation as we unfortunately don't have the money for the 4 of us to go.
Then at a family gathering earlier this year my stepdad had arranged a big surprise for me and said that he would like to pay for me and my mum to go to the wedding as my cousin would like me to be a bridesmaid. My family had planned it all and had asked my partner before asking me to make sure he was happy to look after the children on his own for a couple of weeks, which he is fine about.
My issue now is that I am very worried about being away from for my family for 2 weeks. I have never been away from my children for longer than 2 nights and I have never been far away without them. I am feeling guilty as I don't want to seem ungrateful to my stepdad as I know what he is doing is amazing but I don't know if I can be on the other side of the world. My partner will be more than capable to look after them while I am away and I know I'm going to miss the children more than they will miss me.
Has anyone got some advice please? Has anyone ever left their children and partner for that long and if so did you regret it or were you glad that you went? I have had mixed opinions from friends. Some think it's an opportunity that shouldn't be missed and others think there is no way I should go.
Any advice or opinions will be much appreciated
Thank you :-)

It'll be strange but try to think how wonderful it will be to be you as a person not a mother for 2 weeks for the first time in a decade, knowing they're in the capable hands of your DH.

It's for a really worthwhile reason.

I don’t think I could do it- not two weeks and not that far away. No judgement if you do go btw.

Go and have an amazing time making memories with your mum. You can face time to keep in touch althougĥ you will miss them and no doubt be excited to see them.

I went away for 8 days when my children were 4 and 9 to the US on a work / fun trip. The youngest got quite ill (nothing major but was quite poorly for several days) while I was away, and they ended up all sleeping together in our room and watching movies and having lots of stories. On the second day when my husband called me to say what was going on, if felt like a disaster because he was juggling lots at work too, but once they settled into their routine it was fine. My daughters still, 5 years later, talk about it so fondly as being a lovely bonding time. You'll miss each other but it will be fine and you'll have an amazing trip, I'm sure, and it will probably be really special for you and your mum to spend that time together.