So first things first, Hampi is essentially divided into two sections. Hampi for religious people and families, especially with kids and Hampi for the hippies, in other words people like me who have no active interest in the ruins but would spend their life watching the sunrise and sunsets from all sorts of boulder points. So close your eyes and head over to the hippie island side of Hampi and look no further. ( PS: it's not really an island, but calling it hippie land just wouldn't have sounded that good)
So then comes accommodation. Though Hampi is a VERY popular tourist destination, the accommodations that would fit a solo female backpackers are scarce and few. And most of them are not listed online. I know, absolute pain in the bottoms. But ladies, I got you covered! This place is not listed online yet, but its called RK Residency. Basic rooms, attached toilet, WiFi, close to the main market and very very safe. Most of the guest houses are all huddled together in this one stretch of road and they are all pretty much the same.
Prices vary from 300-600 INR per night, depending on the season. Don't go expecting hotel rooms, you will most probably find a clay hut with asbestos terrace and a bed and fan in most rooms. Hippie island guys, keep up!
Next FOOD. I will skip the where to find good places to eat and just directly jump to my suggestions. For breakfast, try this idli wala who comes on his cycle every morning at 8am and stands opposite to the exit for Laughing Buddha. You will NOT regret this decision. For lunch and dinner my favourite places were The Goan Corner, The Mango tree (it's on the other side of the river), Laughing buddha. I pretty much ate at all possible places, and the menu is literally the same for all restaurants. Like they got it all printed at the same place, but these places had some really good food thing happening, so they are a go-go.
Next thing, you would need a 2 wheeler if you really want to explore Hampi. So hire one (usually costs around 150-300 bucks) and off you go! Hampi is about the sunrises and sunsets. Not even kidding, the sunrises in Hampi are absolutely EPIC. There is no other word for it. So much so that even a nocturnal creature like me woke up at 5am everyday for 5 days in a row, all for the magical sunrise.