IDK… I had a friend once who worked as a stewardess for British Airways. She loved the job but fell ill with an ear infection. She went to a doctor in Washington DC and was diagnosed with an ear infection and perforated ear drum. This meant that she would not be allowed to fly for at least a few weeks.
After a few days, BA terminated her contract and left her in Washington DC to fend for herself. That eventually meant her parents lending her money to survive until she was allowed to fly home. (At her own expense and jobless.)
Everything was apparently above board, as how they treated her was outlined in her employment contract. In this case, go for it, but always read the small print!
Also, how stressful the job is can depend on the route you fly.
Another thing you could consider is working temporarily in hotels over the summer which offer FOC accommodation. You can earn £1,000+ a month in the UK with free bed and board if you are willing to work for 6-9 months in some far flung luxury hotel. A good website to find jobs like that is anyworkanywhere.com.
All you need to do is make sure that your wage is made clear before you fly over. Some hotels are awesome. Others are run by rich scoundrels who offer amazing wages but when you get in the door, read a list of new accommodation and other charges which eat into your wage like nobodies business.
Providing you can takeaway £900 a month after any expenses (and you get paid your tips) you can earn a small fortune doing the hotel circuit. That said, you will leave loathing the human race.
Yes, Fiverr is a fickle mistress. At present, I’m sick of them killing my gigs. My copywriting gig was my highest earner until I received a message saying it wasn’t suitable for the business copywriting category and so they had moved it. They’ve since done the same with all my video gigs. As soon as they do, sales plummet and orders I do get become super hard work.
If I was a wee whippersnapper, I’d definitely do some working and traveling. On that note, don’t forget that at your age, you can qualify for all kinds of cool working holiday visas in places like Australia and New Zealand! There hospitality and even fruit picking can pay a bomb if you are clever and pick te right location!