You probably won't be successful. As the landscape currently is, and has been for quite a while, you have to really enjoy doing it to the point where you self educate quite a bit. If you aren't willing to do that you will fall behind your peers.

It's similar to playing the guitar. The people who are good at it don't just take a guitar class and call it a day, they spend hours working to improve their playing, learn a bunch of songs, learn to play them perfectly from beginning to end, and learn to write their own songs. That's what it takes to be a successful guitar player. Coding is similar.