I'd have given myself three tips: * Learn constantly. Read books, blog, tweets, attend events and network. * Build things. Apply what you've learnt and con

I'd have given myself three tips: * Learn constantly. Read books, blog, tweets, attend events and network. * Build things. Apply what you've learnt and constantly build things. Either at work or as personal projects. Don't worry if the things you built are crap or pointless or un-monetizable. * Share. Constantly share what you've learnt and built. Help others. Join the community and participate. You could be the best developer ever but it won't matter if nobody knows about you and your work.