I am experiencing something like you at the moment. I am an Operations Manager in our 3rd largest venue - which in 2 years will be our 2nd largest venue. I am 28 years old, so I am also the youngest operations manager the company has. I've worked hard to get to where I have - I have had a fairly good mentor, but I still have a long way to go to becoming the manager I want to be. (I cannot believe I just said that...) I am also our states senior most vision technician, equal first most senior lighting technician and probably rate in the top 10 across the country. I am one of those annoying overachievers who until recently had no concept of work/life balance - although I am learning to enjoy life now....
These last 2 months, both our venue and the largest venue we are contracted to released the tender documents as our contract is nearly expired. Both of these venues are owned by the same company and are currently working hard to merge the two into a single entity.
So I was pulled into the tender process primarily because they recognised I would be the best technician on the floor to operate the tender presentation and because I knew both venues really well, as the contract is worth approximately $30m over the next 5 years the team putting together the tender included our CEO, CFO and every other senior manager they could find across the country. The venue threw a number of curveballs at late notice in the process so we were all doing 16hr days of tele&video conferences 7 days a week. So there I am, the next youngest and least experienced in the room is 38 and he has gone through this process twice before, and I am holding my own in these meetings, debating my points and winning on a number of them - not just sticking to the bits they bought me in for, but interjecting where I saw issues with their approach to making a point, I end up coming up with the concept for our presentation of the pitch and operating multimedia for it and it was a resounding success.
Throughout the entire process I kept getting compliments thrown at me - I find it really hard to cope with to be honest, I don't take compliments well - but to me the thing was that I recognised that what they were really complimenting me for was that I rose above their expectations - many of which were set too low because of their assumptions based on my age and experience with presenting tenders (which is to say, I had none). I love the fact that they recognise I put a lot of effort in - but I also temper that with knowing that I did well for my age and experience - as my experience and age increase, so will the expectations for my performance. Basically the compliment = "You did better than I expected" - the overachiever in me tends to believe I don't deserve the compliment, because it just means that whoever gave it had set the bar too low.
SO yeah - you are doing well, be proud of that, but never ever let that stop you from looking for the next challenge, for aiming to meet that next goal and for continually seeking avenues to improve yourself. And when you do start to get a big head - remember that no one is irreplaceable. I had a really skilled employee tell me the other day that if he didn't get what he wanted he would resign and we would be screwed without him. When he didn't get what he wanted, he handed in his 4 weeks notice and so many people panicked, thinking we were up the creek without a paddle. I won't lie - it did hurt a little bit - I worked about 45-60 hours a week for 3 weekson the floor getting things done as we trained his successor. 2 months later it was like this employee never existed - there was no hole that needed filling, we experienced no drop in customer satisfaction and we had no decrease in revenue.