For 4-5 years you really should be looking at realistic paintings and photomanipulations... not filters.. in my opinion.

See. Gawd. Forum = Teaches you muchos. I've had photoshop/used it well for like a year, and all of my skill is because of wanting to do well and get critique on this forum http://supercrofty.deviantart.com

So, you've had ps 4-5 years, you should know the interface well, and maybe try some new techniques now, other than using filters