Firstly you are amazing.not just a mum. This is such a blessing and big responsibility and work. I am a single mum and part time cleaner. When not cleaning I wear a nice dress for shopping and hair nice because I don’t have many occasions to dress up. And when I do clean houses I have nice eye make up and long earrings that make me feel good.
I own each day!dont think that there’s no point in getting dressed or bothering with hair.
Start with walks or coffee with a friend. I’m going to friends houses and I love it. And I dress up too for that.
Buy a CD you like for the car.
Embrace your life in motherhood and validate yourself. Everyday.

You need to start introducing stuff for you again. Bit by bit whether it’s sport, book club, regular outings with friends or some type of work. Once you start doing things separate from being a Mum you will hopefully feel yourself come back.

Beautiful suggestion given by Loui..
I can add and say just start spending time doing what you like..even if it means starting with 5 mins…. and yoga/meditation really help.

It sounds like you are giving 110% of yourself to being a mother. I bet you are doing a brilliant job.
To find yourself again you could try finding some time each day or week that is just for you. An hour or two a week or 10 minutes a day. Some time that is about you , not your children.
A friend of mine who has children of similar ages to yours just joined a local choir. She isn’t really a singer or anything, but it is her time and it’s fun.
Another friend joined a book group.
I found even taking our dog for a walk around the block was enough some days.
When my kids were a little older than yours I started an online course. I also did some volunteering. These were things that were just for me.
I have found that by having my own time and life I return to my family relationships (ie hubby and kids) with new insights and experiences that I can share with them. It also re-energises me, enabling me to tackling parenting again. This time apart enriches our relationships.
You are still you