Should I attempt mittens or socks first?

Hello!

I taught myself to knit basic stitches. I’ve completed a few project over the years - a hat, several scarves, and a couple of baby blankets.

I would like to start knitting more now that my baby is getting older and I’m getting more time for myself. I was thinking I’d try socks OR mittens next but I don’t know what would be best and am hoping someone with experience can help me figure out my next move.

Thank you!