I definitely do.
I'm 21, have lived out of home and paid for everything myself since I was 19, am doing an economics degree, have 4 siblings that I always try to remain close with, always try to keep my parents close and make sure everything is ok.
It's a massive struggle to balance everything sometimes. I have two jobs, one with my grandpa at a shop which is the most boring thing in the entire world, however he pays me cash and I have the freedom to work as I please (like if i need a week off, I can take it), and I work at a bar as well. Last friday I worked 17 and a half hours straight :p, 9am to 7pm at the shop, then 8pm-2:30am at the bar. I still owe some of my family money, because my car costs a f-cking fortune to run, registration, insurance etc. I like to keep the car so I have access to see my family (Im in australia, its it's uncommon for teenagers to move out when they go to university, most of us save the money stay at home and go to the uni within a decent radius). However as a teen my parents were always fighting, so I was happy to get out of there around 18/19.
Without the life story, I compltely agree your view on expectations. These expectations for me arn't necessarily the expectations of others, they are more the ones I put on myself. I enjoy having expectations of myself, they make me do the work I need to do, and ultimately, the harder I work, I figure the more rewards I will reap in the future. The reason I work so hard is so that I can pay for the luxuries I want - e.g living out of home, having a car to go surfing/see my family in, eating the food I want to eat. But I sometimes wonder whether the work that I am doing is rewarding me mentally - e.g the shop I work in, is the most boring work ever and I end up just thinking for 9 hours straight, tryign to kill time then going home. I wonder, if I had a better job, a job that is more fulfilling, one that isn't boring and it kept me busy, would I have less anxiety - because I have less time to think, and I would actually enjoy it. I enjoy the bar work.
But at the same time, if I didn't work at my grandpas shop, I can't just save money and go up the coast for a week or two, and take days off because I have too much uni work, and blah blah. Freedom is never free it seems. This is turn, would make me more unhappy.
It terms of other expectations, I always expect or TRY to be a good brother, try to help my mum and dad when they ask for help, and this is all ok. I have no anxiety around my family expectations. And university I don't really care about, i go to a really good uni in sydney so just PASSING uni is good enough to get a decent job (the content is so boring). FRIENDS are one thing that get me anxioius - i like to be liked by everyone, i want to be funny, yet a good guy, giving, being empathetical etc etc. I raise the bar quite high, and it does get my axniety going when these traits are not validated. However I don't know how to deal with this, because I am always happier when I get a certain level of attention (good attention, not bad), and while some may think I shouldn't care what people think - I've tried that, and while I stopped caring for a while, I wasn't happier.
Anxiety does stem from something other than how it presents itself. It can be expectations, over working yourself, or simply suppressing emotions that havn't been dealt with over a long period of time. And these emotions often come out in our young adult years, and then we figure it out, and move on. My mum had really bad depression and she said that from teen to about 25 were the hardest times she had, because she had so much to figure out (she had quite a challenging upbringing). Then, you simply learn to manage everything better, it is not so overwhelming, and things get better.
I think analysing our past and present is most important in recovering anxiety, and somewhat neglecting the future. Because the future is so uncertain, we can only work on what HAPPENED and whats going on NOW, and let the chips fall where they may. And given your anxiety is bad, the catastrophic conclusions you create, attempting to predic the future is only going to be more harmful to your wellbeing.
Thats my thoughts.