Advice on spring shoes- and trousers if anyone is up for a challenge. Shoes are urgent

I’ve realised lockdown and children has made me very out of touch. Don’t know where to look for shoes and always have this problem at this time of year . I own very nice long winter boots and I have some very nice summer sandals but it’s too cold yet. Last spring and summer I wore slippers and flip flops every day. I am shoe size 5, dress size 10/12 and 5’5” so quite short but I hate being uncomfortable so flat or preferably nearly flat. I don’t need to wear anything specific for work but I like to look neat still wfh for now. I usually buy clothes in Dorothy Perkins etc. Can’t really stretch to Boden very often but I would like to. Usually buy shoes in Clarks (that’s a habit I picked up when shopping with kids) and now don’t know where to shop for shoes. Clarks size 5 guaranteed to fit well. Please send help