I can only offer advice from my personal experience...

I had DD1 straight out of school, so had no job experience other than a few hours a week at various takeaway shops, etc.

My first 'real' job (I still have ) - by then I had 3 kids, the youngest was 2. I was invited to bring in my resume after going in to buy something. Had an interview, didn't get the job. Offered to them that next time they were hiring, I'd do 2 weeks training free. Got a phone call that afternoon saying start Sunday

Over the years I have gotten to know my boss (duh!) and I since realise that making that offer was the BEST thing I could have done. He is very big on people who want the job & not just for the money.

I have interviewed people with him, and I can give you his perspective - (although he is only one man) - and this is a customer service based role -
he doesn't care much for education. If the position is customer service, that's what counts. They are the bread & butter of the business, if you can be personable that's 70% of the way there.
He wants people who can be flexible. Having said that, he has put people on over & over again who had restrictions on what they could do because they fit the bill every other way. If he thinks they are worth a bit of juggling for, say because they have excellent interpersonal skills, he will do it.

So yes, definitely let them know what you are prepared to do & not do in terms of hours etc. For example he asked me if I would work Saturdays & Sundays - I said I would do one day but not both - I have a family who need my time also.

I know I want something 'servicey', working with people etc. But where do I see myself in 5 years time? No idea. Hopefully having been a mummy again, by birth or not, not sure yet. I might want to see myself with the same company, but hopefully having worked my way up at least a little bit. Is that ok to say in an interview?
Yes! we hate having to train people who are only there for 6mths....wanting to work your way up suggests that you might put a bit of effort into your job, lol.

Well as usual I have rambled
I hope some of that blather is helpful to you. Good luck!