Yes go for it.
You're not going to get any magical life long lovely wedded couple relationship out of it, but that's the same with most relationships. There's no reason for you not to get a gf at 14 if you're able to, experience is good to have.
As for not knowing how to kiss dw about it, that stuff comes naturally as you go into it, not to mention the girl probably wouldn't know much better anyway.
You should definitely not purposely avoid a relationship on the basis that "it wont mean anything/because too young" as that is a flat out stupid approach, if you were to avoid relationships because you don't know if they'd have meaning then you will never have a relationship, and as I said experience will do you good later on. Anyone that says "(i) dont have a gf because im still young and it wont mean anything" is just using it as an excuse.
And don't forget to send me pics.