This is not a judgment, BUT , you ARE acting childish. Jealousy is a very bad and childish emotion which brings no positive benefits. You sound like a kid who's been to Disney world and wants to go back again ASAP ! You know there are millions of people who are doing things right now that I would LOVE to be doing.
And there are millions of people who would love to have my boring , go nowhere, do nothing lifestyle right now ! The main thing is you don't say how old you are.
If your young you'll have plenty of time to " meet all these fabulous women ". ( I think I know what your really looking for though ). Are you worried that your friend may get more than you ?( Lol). And if your older are you afraid that by next year you won't be able to " meet " these women !
To finish , if this is really a serious post then I suggest you seek out some professional help to help you with your jealousy and anxiety problems.
Best of luck to you.