When considering your working future there are a few influencing factors you may want to consider. An example of those might be, the route which you have to take to get there. The remuneration that career offers, your personal interests and skillset, and then whether you want variety and challenge from your day-to-day job.
The fact of the matter is some people will always choose a job that presents a challenge, that keeps them on their toes. If that is you then here is some career inspiration for vocations that are likely to keep your brain working overtime.

Lawyer
Even just the process of qualifying as a lawyer will challenge you. It is a difficult and expensive path that might offer financial rewards but one that you will work hard for. There are elements of the law that may present less of a daily challenge, non-continuous areas such as domestic property law, for example.
That said, there are certain areas of the law that could see you working to overcome challenges each and every day. The law is ever-evolving and lawyers have to keep up to speed with legislative changes at all costs.
The law is unpredictable and despite your best endeavors cases and trials may not go the way you expected them to. If you really like a challenge then practicing as a criminal defense attorney or appellate lawyer will certainly be able to provide you with the variety and challenge you seek.
Teaching
Becoming a teacher can be an incredibly rewarding career that sees you impart wisdom on education to young people, helping them to reach their goals and aspirations. That said, being a teacher is not always an easy ride.
Teaching young children and young adults who may not be interested, willing, or able can provide certain challenges. Regrettably, funding issues, socio-economic factors, and lifestyle choices of families can also present hurdles to teaching and education that make your job harder to fulfill. While teaching is certainly an admirable career choice it isn’t one that is plain sailing.
Prison Warden
Working in the correctional department can certainly be a tough environment to be in. Every day you will encounter stresses and strains that the majority of the public will not be able to understand.
You will be responsible for a large group of convicted criminals. You are charged with their safety and of course your own safety in a highly demanding, high-pressured environment.
Firefighter
Becoming a firefighter is a dream of so many young people and while it can seem varied and even glamorous at times the reality is, it is a demanding and challenging profession. As a firefighter, you are charged with protecting the public in potentially life-threatening situations.
You could be required to be on call 24 hours a day and to deal with an array of dangerous emergencies. Being a firefighter is not for the faint-hearted and is likely to challenge you mentally and physically. That said, while it can be a high-stakes career it can also be a very rewarding profession that gives you ultimate job satisfaction.