You made every mistake possible during this interview. Seems that you are really smart person so try to think what airlines want.
Do they need anybody with well paid job if the salary will not be very good at the beginning?
Do they need anybody with a big family or somebody who can go anywhere in the world on a 5 minute notice and stay there for 12 months work all weekend and holidays?
Do they need anybody who is afraid of the stress?
The best option for you is to get a PPL try to fly and if you survive with your family and really enjoy it that it means your are meant to be a pilot.
It can be very difficult to do 8-5 job and study aviation but possible.
Maybe take a vacation for a month a two go to the USA get PPL there, fly a lot. After that you will know if you want to do that. Aviation is not only flying. A lot of documents paper work as well. Flying is just an additional benefit.
Flying big jets is cool but not always very thrilling. Try to fly gliders, learn aerobatic ect.