How to make my hair behave?

My hair was always been wavy - at the front it tends to wave to my left and at the back it waves to my right.

I've always styled my hair so it is spiked and leaning back which I used to do my simply combing some gel through my hair and using the comb to flick it up. This worked fine before but now I'm growing my hair just a little bit longer (it's currently about 2 inches long on top) and my hair always wants to stay flat - if I do manner to get some of it to stand up then waves just as I said above.

Can anyone recommend a way to make my hair do what I want it to?

Thanks for your reply.

I've using very strong hair gel - it's called 'Manga Head' in the UK since it's suppose to be able to hold hair in all directions. The problem is my hair - like I say, it knows which way it wants to point and it takes a lot of persuasion to make it go any other way. Now that it's getting longer it's just getting more and more difficult. :(

Any other advice?