Hello and welcome, Karol.
Your musical path has been very similar to mine, years of six string guitar, a couple of years with a Carter Starter and finally, on to an E9 GFI, and boy, does this instrument get under your skin.
If you can get access to any steel meetings or spending some time with an experienced player it would help you immensely. Otherwise, it's on to YouTube to watch the hours of helpful material from the likes of Mickey Adams and Joe Wright.
And, to completely blow your mind, get a hold of Buck Reid's CD (if you haven't already)
Good luck with your Steel trip