OP - eh, if you are still having fun then I'd say you are on a good track
That's quite a bit like how I started- and yeah, I started riding HARD everywhere I went -
As long as you have fun, keep going.
The more "into it" you want to get, there's reading and specific ways of riding that are (usually) the shortest route to get faster - but keep it fun - once you stop having fun it's a slide to not racing anymore. (eg, me)