Your hair...
...looks gorgeous! (So do you :))
How I did it: First I was looking through some YouTube videos on how to cut your own hair, layers and such (I was rather fed up with one layer hair). And then I came across this little gadget called the creaclip, looks very much like a clip you put on food in bags to stop the food going soft/bad with a comb inside and a spirit level. You can see more info about them here
Anyway, that's how I did it, and it's a tool I can use again and again to trim my hair and/or change it up a bit more :)
Lessons & tips:
Resources: CreaClip's YouTube Channel (lots of how-to's).
Of course, you don't need to buy this to cut your hair, I just personally wanted to take some of the worry out of it.
...looks gorgeous! (So do you :))