I dont want to hijack this thread, but I am in nearly the same boat as OP just early 30s. Would all your suggestions be the same to me as to OP?
You can PM me to keep answers in this thread more tailored to OPs question.
To OP: Have you visited Doha? For me it seemed more of a normal city compared to Dubai. But you have first hand experience with the Dubai lifestyle. I would say if that's what you miss compared to the Eastern European life you have now. It might be a good move. Just bear in mind you have to adept to where you live. Its what I do, living in EE as well (same outfit) I just adjust to almost becoming a local and not an expat. Somehow I can bear with the way of living here by doing that.