Hey OP, midwife here! I see a lot of similarities in your post to when I went back to work.
I was full time non clinical 37.5hrs B6 then interviewed for the same job essentially but at B7 level when I was 34 weeks pregnant and was successful.
It was also a job I had been working towards for ages and, even though I loved (still love!) being a mum to our baby boy, and would've also stayed at home if financially possible, I wanted to go back to give the job a good enough crack. Though we worked through both options to see what would be best as childcare was looking extortionate. The only nursery option for us due to start times and finish times for me was the on site hospital nursery which is amazing.
I went back in September, when my LO was 13 months old. My compromise, which made me feel better about the situation, was that I do compressed hours, 8-6 4 days a week. For me it gives me a day in the week with my boy for us to do play/church groups together, then the weekend when my husband is off (usually though he does work shifts) for us to be together as a family.
I am extremely lucky, in that although they're not local, we do a 'meet in the middle' drop off between me and my Dad on a Monday so my parents can have my son, and then every other week my MIL travels from across the country to stay with us a few nights so she can do a couple days childcare too. I appreciate how lucky I am and how rare that is!
Having said all that, DS went to nursery for 3 full days every week 8-6pm for about the first 8 weeks, and then my MIL offered out of the blue and despite turning her down (kindly) at first, as we felt it may be too much for her, she loves it and our boy loves being with her and all the adventures he goes on with both sets of grandparents.
I struggled initially as I think many parents do, but nursery was so good for DS. He was eating different foods, and more food (I was initially worried as he didn't eat very well at home and was a bit boob obsessed!) he's learnt so many new skills and has settled in well and has lovely key workers.
Whatever you choose it will all work out, it does take a bit of adjustment though.