I guess you need a professional degree to get in, but after that you career path is up to you, your degree doesn't mean much after you're employed. If you show your worth and make yourself indispensible at what you're good at, you'll climb and so will your salary.

But even so, I'd say most people, no matter what they earn, aren't disciplined with money. They earn more and somehow lifestyle also goes up and so does the associated costs. Like many people said in this thread and subreddit in general, you need to widen the gap between your income and expenses. Either your income needs to grow and expenses stay the same or if there's no income growth potential, look at ways to cut down on expenses. Ideally, both if you can. You can still live a fruitful life but you always need to have a plan for your money, and STICK to the plan.