This makes it a bit more difficult since I designed most of the architecture at my work. It would take a lot of work to be taken seriously again and not have my opinion being discarded because I'm the newcomer.
I would have to prove myself all over again though, not something I'd look forward to.
Hmmm.. I'm quite happy with my work and the benefits I get. I guess if I got to restart I would make some more friends in the right places from the beginning. It's something I learned only later on that it helps to be on good terms with those higher up, in case you need some support with budgets or priorities.
And vice versa, I would also be more careful with not pissing people off. Early on in my job I ruined a few relationships by being a prissy bitch about how things were supposed to be done, instead of being a bit more open minded. Looking back on it I inwardly cringe at how I acted back then. That's definitely something I would not repeat, I like to think I've grown a bit emotionally since :)