I guess average guys with little experience are totally screwed then
Not at all just find a girl who is equally inexperienced or cums really easily
If such a lady is not available though I think you'll find most woman will have a lot of patience if they like you. So long as your eager to learn and get better most women will find it a joy to guide your tongue as it goes to work.
Inexperience is only a problem when the guy is totally unaware of how crap he is and just bangs away thinking he's sending you into nirvana...