As mentioned before only YOU can make the decision if its worthwhile for YOU.
I have to agree with a lot of the reply's so far. However there are also a lot of pilots who do enjoy their job and don't want to do a different job for all the money in the world. As many opinions as pilots.
I started of as an aircraft engineer and loved my job as it was challeging and rewarding. Seen a big part of the globe as an engineer solving problems on our fleet or when providing technical assistance during a wet lease etc.
Left engineering to start flying but on my days off i still worked for an engineering company to keep my license valid. After flying for several years (shorthaul and longhaul) the flying got a bit dull and i started to look out for different challenges. Fortunately my part-time job as an engineer gave me the challenges i was looking for.
In the end decided to start my own company as a hobby and not really to make the big bucks. Through time the company grew bigger and the roles have changed now. The company is my main source of income and i now fly part-time as a hobby. Don't want to give up the flying completely as i really enjoy it.
Why don't you try and work for an airline? If you don't like it you can always return to being an engineer. It's better to say; Ok. i have tried it but its not for me. than in 15 years regretting you havent done it.
Just my 2P. Good luck with the decision.
CEJM