Make another adsense account and this time don't do anything which wil gain make you banned. Be more care full this time......
Do not worry my friend. Google ad sense is not the last word for the PPC campaign. If you are enjoying huge traffic then you have an option to try many other PPC available online. However you must take this as a learning opportunity so that you can host any other PPC with out click frauds.
There's no way to regain back your account once you get banned. My friend also got banned in adsense and he try to email google but he didn't get any reply.