I'll give you my personal account and a professional account (I'm a nurse).

Personally, I had mine done in 07 when dd was 8 weeks old. I was in one night with a drain tube. As a private patient, I had the option o staying a second night but wanted out. The drain tube was a precaution and was out by lunch the next day. Pain wise, I woke in recovery in lots of pain but don't remover that. I just remember a nurse telling me he'd exhausted my options. By the time I was with it on the ward, I was pain free.

My biggest issue on the day was fatigue (normal after a ga) and a reaction to the morphine and pethadine.

I went shopping two days post surgery and recall being tired and sore at the incision under my bra line. But I was pushing a heavy trolley and refused to take my pain meds. Voltaren was a blessing! I was completely fine within 5 days. I was self caring for dd within 2. Including feeds but she was ff. the only other issue I had was shoulder tip pain which is normal for this surgery. It was gone by the time I went home.

Professionally: everyone reacts differently to pain and anesthetic. It could take a few days to completely process it put of your system. In the meantime, you will tire easily.
The pain and recovery also depends on the complexity of your surgery which they won't know until they start. The recovery for lap choli is much less than if they do a traditional entry. Most patients are back at full capacity after a week.
My tip is to rest when you can/need to, avoid lifting too much for 48 hours, keep up regular pain relief for 48 hours min. You won't know how you'll cope until you're there.

Have a few plans in place but give yourself some flexibility.