OP, you sound very very naive.
Go sit in a public place and look at every single man. Could you honestly have sex with and/or give head to each and every one?
At the very least, go read SAAFE which is a forum for sex workers. They have a few articles too about things to consider before going into escorting. For the most part, it is not glamorous, nor is it easy money. It is also an over-saturated marketplace full of women willing to do anything.
Girlfriend experience (GFE) means different things to different people. It's also a service many have moved on from. Ultimately, men are paying for sex and paying for you to leave. Yes, some do want to talk as well, but they're few and far between. Most just want a sexual tick list of services performed, often for as little amount of money as possible. These men often believe that if they're paying for an hour of your time, that's an hour of solid fucking.
I did high class escorting (or companionship, a term most as most £400+ ph companions tend to use). I did only do dinner dates and longer dates. But, sex was still always on the menu. I also did it alongside an actual job as men looking for dinner dates are few and far between. It also takes time to build a client list, as does screening, marketing, dealing with enquiries etc. You also have to be very clear about your boundaries too. It's a lot of work to even get yourself out on a paid for date.
Lastly and most importantly, escorting really isn't a way to boost your self-esteem or self worth. Only you can do that.