Level Design off Topic

Hello guys, as I said this is an offtopic question. I want to know how to show up for being a level designer in games. I made a lot of maps for Serious sam 3 that is running the Serious Engine 3.5, pretty nice Engine. So, I have a lot of experience in level design, building or map bug spotting. I have no patience for modelling (without a great motivation i won’t), programming is pretty fun but designing a level it is pretty fun for, counting that I use a lot particles to make the level look better. I started in 2012 to make ss3 maps and after a short stop i restarted back in 2015. Some help? Some spots to become a REAL game designer?