You now know the basics of everything you need to know to create pages which people will pay for.  You probably need more practise to get the pages right but the principles should be there.

What you need to do now is to keep making sites.  You can always look up extra help if you need to do the odd thing you do not know how to do. 

Do enough of that and you may never need this site again.  However, there is much more for those who prefer to be guided through their development.  Do some more practising first though.