@crabbingbucket
God I'm jealous of them! Young, confident, slim, beautiful... whole lives ahead of them with probably every door open based on their looks plus time on TV. Maybe I'm just incredibly unhappy with how my life's turned out (I am) but I'd give my right arm to be any of them.
Oh wow, I am sorry you're unhappy with your life - and you must be if you're so jealous of these women. 
Yeah they are young I agree with that, but I don't agree with anything else you say about them. I don't think the majority of them are confident, because why do they have all the fillers, and botox, and fake boobs, and fake tan, and fake teeth, and hair exensions etc etc???
The only one who oozes with confidence, and is (IMO) naturally very pretty, is Chloe. Caz is naturally pretty, but seems a bit stressy about the men and if they like her, so I don't think she is uber confident, but fairly confident yes... Millie also looks fairly natural, but doesn't seem to have much confidence.
All the rest of them come across as insecure, needy, not happy with their natural looks, and needing validation and compliments all the time. Yep, even the sassy Faye.
As for you saying that you envy all the chances they will have when they get out. I wouldn't envy it. It's a very tiny minority of Love Island contestants who will make it big, and get loads of 'work' out of it. The only ones who will (possibly) get any work after they leave, are the ones who were 'influencers' prior to going in (and who already had a big following.) And even then, the 'fame' will probably be quite fleeting. They have no discernible talent, any of them, so the fame won't last.
Like Scarlett from Gogglebox. She was cute, pretty, and quirky, and a joy to watch on Gogglebox, and she was hoisted off onto ''m a Celebrity' which she won. For a while she was in demand to present this and that, and do magazine interviews and photoshoots, and do a 'fitness' video, etc etc, and she appeared to have the world at her feet.
It didn't last long, and you rarely see her now, unless it's on some dreadful crappy late night channel 5 'panel show' drivel. She is also massively MASSIVELY insecure about her weight and her looks, and is regularly trolled and attacked on social media about her weight. In fact, her battle with her weight is what she is famous for now!
Same with Charlotte from Geordie Shore. Similar story to Scarlett. Small time TV fame, made bigger by winning I'm a Celebrity, then did a 'fitness' video, and got lots of TV work for a year. Yet now she is a Z-lister, who is never on anything significant or good. All she is known for now, is peeing on the bed in Geordie Shore, and her botox and lip fillers .
Also, there is no need to be jealous of anyone's looks. Just remember looks fade, and also many of these young women are all botox, fillers, bleached teeth, hair extensions, and make-up, so probably don't look any better than you or me anyway.
Seriously, I am sorry you feel like you do, but nothing on EARTH would make me want to swap places with any of these young women on Love Island.