I used to be the same just gradually introduce new colour push yourself out of the comfort zone. Just try not to be put off when someone says "OMG she's wearing colours!!!!"
I started by adding greys and then reds and purples because they look good with black. Sometimes I'll even wear pink now so you see they is hope for us all.
And if you try colur and just don't get on with it don't worry you can never wear too much black really... Just be yourself and do what you want
