The way to succeed is to identify your strengths and weaknesses, then seek goals that fit those strengths and weaknesses using tactics and strategies that take advantage of your strengths and sidestep your weaknesses.
Pursuit of money, fame, and status generally does not produce a bumper crop of friends and friendly relatives in old age. Indeed, those goals are selfish and selfishness is not a way to make friends. Furthermore, money, fame, and status tend to attract false friends which may get in the way of your acquiring real ones.
The point is that there are times when new information warrants a goal change. The other point is that you cannot change your goals to easier goals every time the going gets tough because it got tough. Persistence is one of the most important qualities necessary for success. But persistence only applies to pursuit of the right goal for you.
In small organizations, your true abilities regarding producing or selling the organization's product or service tend to be most important. In large organizations, your bureaucrat/office-politics skills are paramount because there is little individual responsibility for results within the organization. It's too hard to tell who gets credit or blame, so office politics wins out.
When you first start to study a field, it seems like you have to memorize a zillion things. You don't. What you need is to identify the core principles - generally three to twelve of them - that govern the field. The million things you thought you had to memorize are simply various combinations of the core principles.
Creative people are often considered eccentric. Everyone is creative and eccentric. We are all unique. But the vast majority are afraid to let it out. It's more accurate to describe so-called creative, eccentric people as simply less inhibited.
Give your customers a quality product or service and a good value and they will recommend you to others and come back for more. Tricking your customers to buy is neither spiritually rewarding nor a formula for enduring success.
Whatever you did in the past may well have been a mistake. If you become convinced it is, clinging to it just repeats the mistake and compounds it. Put it behind you - even if it was a career you spent decades developing. All that matters when it comes to decisions is your current goal and the best way to get there from here and now.