Let's make it simple: We can hear what ever advices from others. If we are not able to bring this advices in any form of action in our life, no advices will help. You then should realise this problem and search in your personal life and ask your self what you are doing, why you do it and why you are at the point you are.
Sometimes we as Humans ran into a corner we do not come out as long as we can not analyze and recognize our weakness and our strength. The weakness keeps us in those corner as long as we not can accept it as a weakness. When recogniced this, we are able to turn ourselfs in the direction we have strength, even this strength is on completly an other topic compare to the one which brought us in this corner.
If trading brings no success after a certain time, and in your case a very long time, then it is time to sit down, analyze what you can best and there is always something we are very best, and then start to concentrate on this and accept that you/we have failed on other fields. (Sorry, my English is not so good)