I cried every day. However, various things helped -
Cuddling and reading to toddler whilst feeding.
Sling. - started with caboo and moved onto a rose and rebellion, which enabled back carrying which was great for cooking/ housework. Baby learnt to bfeed in the sling at some stage.
I stopped being embarrassed about bfeeding in public.
Agree with pp about getting out as much as poss. We’d do a long walk to various toddler groups. There was often someone who was happy for a baby cuddle so I could play with toddler. Home for lunch and then toddler nap. Baby only cat napped on me.
After nap, we’d have an afternoon trip - park, library, walk.
Tea time was the witching hour! Simple tea for toddler, sat with him whilst baby fed. Bath time for toddler, dipped baby in as necessary and then baby in bouncer.
I used to record C Beebies bedtime hour so that I could play it earlier for toddler. Toddler bed and book, prioritised that over baby crying, or feed her whilst reading.
Once toddler was in bed, I would do a quick toy tidy and then cluster feed. I co slept as baby would only sleep with me, so she went to bed when I did.
If DW was working, I’d have toast for porridge for supper. If she was home, she cooked.
Packed baby bag the night before and laid out clothes ready.
It was really hard but looking back, it went in a flash. Hope you are OK OP, you can do this.