Dear People,
I want to getting into be a good hacker. Maybee i will open a security company in few years.
Where to start? (Grade 1 (is bad) to 5)

• Working 3 Years since university as software Developer
• C#, java Grade 4
• C, C++ Grade 3 (4 years since last projects, needs polish)
• Network Grade 3
• Network Security Grade 2
• Windows Grade 3
• Windows Server Grade 2
• Linux Grade 4 (almost no compiler skills)
• Database Programming Grade 5
• Database Maintenance Grade 2
• Web Development Grade 2
• Html Grade 4
• PHP Grade 2
• Mobile Development (little Android java and up to zero Objective C) Grade 2
• Multi Tier Development Grade 3

My question:
I'm more allround where do I start getting a good hacker?
Is it better to specialize?
Companies around me are in need of network security I think.
What is your option?
thanks, frunwald!