You definitely need to research!
I've worked in hospitality in various positions, one place I worked was a b&b but even larger hotels didn't make much if any profit - and that was almost 30 years ago!
Increased regulation in many areas particularly health and safety mean you need to be pretty much independently wealthy to even consider it!
The working hours are LONG the b&b I worked at the owner/manager was up around 4/5am and went to bed around midnight, a b&b I stayed at several years later and chatted with the owners/managers based on my experience several years later had been b&b people all their working lives having initially taken over her parents place when they first married. They worked similar hours.
As with any self employed situation you can't really have time off sick, as you work in the holiday industry that means being open and working when others are on holiday - Christmas is the most profitable time and any b&b owner who closes at this time is foolish to do so and rarely keeps the business going.
Yes you can employ staff but of course that eats into profits, not only wages but sick pay, paid leave etc plus recruitment and training costs, certain roles require certain qualifications or you'll fall foul of regs or at least be difficult or have to pay more to insure the business...
To be honest I'd be VERY surprised if any lender would loan to someone with NO experience or real knowledge of the industry, too risky, it's unlikely you'd be able to repay the debt in the time they require.
Plus things like Airbnb are damaging the industry and making it far less profitable or reliable.
If you are determined I would suggest starting very small more guest house style in buying a max 3 bed place that you live in and rent rooms out via something like Airbnb and build experience and savings slowly.
I fear you have a very unrealistic rose tinted view of exactly what's involved.
I've been a chambermaid (guests can be utterly disgusting - indeed the "posh" ones can be among the worst!), kitchen hand, waitress and receptionist.
Guest expectations are HIGH "because I'm paying" and the work is physically, mentally and emotionally demanding and utterly relentless!
I have the sense you think it's mainly playing "mein host" changing beds and cooking highly praised and appreciated breakfasts...
The reality is constantly cleaning rooms left in a disgusting state, being repeatedly complained to, accused of stealing and ripping guests off, dealing with rowdy even aggressive drunk/high guests...
I'm thinking you've probably watched shows like "four in a bed"? That is extremely tame in terms of how and what guests complain about!
Assuming you're a woman I would not even attempt to run such a place without a confident and assertive man to hand! Shouldn't be like that, but honestly you'd be far safer if that were the case.
Another reason to start small.