If you choose a bad car you have to push, if you choose a good car it will run without any pushing.
Same applies to trading (or anything else). Make the correct choice, for which you unfortunately need knowledge. If you have no knowledge you will never find anything. Lack of knowledge is the main obstacle. Most people overestimate their own intellectual capacities.
I made already many times this comparison: 90% of the drivers are sure they are in the top 10%. Which is mathematically impossible.
Most traders who fail will never admit that they are themselves the reason of the failure. Too bad for their ego. Nobody wants to look stupid.