Any Photoshoppers here?

I watched a couple of small tutorials the rest was learned from teaching myself.

i prefer gimp, because of the name

I learned pretty much everything I know myself from messing around at first, but then I got more serious and started using tutorials for both Photoshop and Illustrator! you should check out Adobe Illustrator! It's awesome!

Get your hands on Photoshop Top Secret DVDs.

Step 1: Youtube "photoshop as a weapon" and follow along. Take as much time as you need.
Step 2: Youtube "You Suck at Photoshop" and just watch starting with S1E1. It's hilarious and informative.
Step 3: Start a project using what you've learned, calling back to YSAP as needed. This gives a VERY good grasp of basics.
Step 4: Profit. It's a lot easier to start this method than jumping around to a lot of random tutorials, and once you've gotten to step 3, finding a specific guide for something more advanced that you want to do is a LOT easier.

Messing around and trials + errors.
If you want to learn, you should know what you are going to make. Start with easiest one, for example combining two or more photos into one. Learning about selections is one vital function in Photoshop or any image editing program. If you get stuck, look at help docs or google.

I know it's not the best learning curve for everyone but it works for me :)

watched some basic tutorials on youtube then discover the rest myself.

Tutorials, seeing other people's PSDs and posting my work in places where people would give honest crit rather than just praise.

The last especially was a big help. Having someone else point out to you what isn't so good and how you can improve upon it is the best way to learn and get better. It's just hard to find people who can give honest crit in a way that is actually helpful, most people will just give praise and nothing to help you do more than just repeating the same mistakes over and over again.